CN107525229B - Method and device for controlling electric heating of air conditioner - Google Patents
Method and device for controlling electric heating of air conditioner Download PDFInfo
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- CN107525229B CN107525229B CN201710657744.4A CN201710657744A CN107525229B CN 107525229 B CN107525229 B CN 107525229B CN 201710657744 A CN201710657744 A CN 201710657744A CN 107525229 B CN107525229 B CN 107525229B
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/34—Heater, e.g. gas burner, electric air heater
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Abstract
the invention discloses a method and a device for controlling electric heating of an air conditioner, and belongs to the technical field of air conditioners. The method comprises the following steps: acquiring a current humidity value corresponding to a current period in the air conditioning action area; determining the current humidity deviation according to the current humidity value and a set target humidity value; according to the current humidity deviation and the humidity deviation of the previous period, performing proportional, integral and derivative (PID) control to determine the starting time of the electric heating of the air conditioner in the current period; and controlling the switch of the electric heating according to the current opening time. Therefore, the output power of the electric heating is matched with the PID calculation power corresponding to the humidity, the intelligent control of the electric heating is realized, and the energy consumption is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for controlling electric heating of an air conditioner.
Background
With the improvement of living standard, air conditioners have been increasingly used. At present, an electric heating function is provided in a household air conditioner, and the electric heating function is automatically started or a user starts electric heating through a remote controller under the condition that the heating quantity is insufficient when the air conditioner heats in winter. However, the output power of the electric heating is constant and cannot be automatically adjusted according to the requirement, and the control mode of the electric heating is not energy-saving and is not comfortable. For example, in winter, a user sets the room temperature to be 30 ℃, but the air conditioner can only raise the room temperature to 27 ℃ when running at full load, and at the moment, the user starts the electric heating function, and the output power of the electric heating is 1000 w. However, when the electric heating power of 1000W is increased, the room temperature is rapidly increased to above 30 ℃, and at this time, the user needs to manually turn off the electric heating, otherwise, the room temperature is overheated and uncomfortable as the room temperature continues to rise.
Therefore, the control mode of the electric heating can only be controlled according to the user instruction, which is not energy-saving, and the power output of the electric heating of the air conditioner can not be intelligently controlled.
Disclosure of Invention
The embodiment of the invention provides an electric heating control method and device for an air conditioner. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
according to a first aspect of embodiments of the present invention, there is provided a method of controlling electric heating of an air conditioner, including:
acquiring a current humidity value corresponding to a current period in the air conditioning action area;
Determining the current humidity deviation according to the current humidity value and a set target humidity value;
According to the current humidity deviation and the humidity deviation of the previous period, performing proportional, integral and derivative (PID) control to determine the starting time of the electric heating of the air conditioner in the current period;
And controlling the switch of the electric heating according to the current opening time.
In an embodiment of the present invention, the determining the current humidity deviation according to the current humidity value and the set target humidity value includes:
Determining a difference value between the current humidity value and a set target humidity value as the current humidity deviation; or the like, or, alternatively,
And performing weighted average operation on the current humidity value and humidity values corresponding to N continuous periods before the current period to obtain a current estimated humidity value, and determining a difference value between the current estimated humidity value and a set target humidity value as the current humidity deviation.
In an embodiment of the present invention, the determining the on-time of the air conditioner electric heating in the current period includes:
obtaining a variation value of the humidity deviation according to the current humidity deviation and the humidity deviation of the previous period;
Determining the on-time proportion of the air conditioner electric heating in the current period according to formula (1) and formula (2); wherein the content of the first and second substances,
Δ Heater _ p ═ Int ((Heater _ Ki × Δ RH + DRH × Heater _ Kp) × 100)/100 — formula (1)
heater _ p ═ Δ Heater _ p + Heater _ p1- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Δ RH is the current humidity deviation, DRH is the variation value of the humidity deviation, Heater _ Ki, Heater _ Kp are the modifiable PID calculation parameters, Δ Heater _ p is the on-time proportion difference of the air conditioner electric heating, Heater _ p is the on-time proportion of the air conditioner electric heating in the current period, and Heater _ p1 is the on-time proportion of the air conditioner electric heating in the previous period.
In an embodiment of the present invention, the obtaining the variation value of the humidity deviation includes:
When the current humidity deviation is within a set range, determining the current humidity deviation as zero, and determining a variation value of the humidity deviation as zero.
In an embodiment of the present invention, the determining the ratio of the on-time of the air conditioner electric heating in the current period further includes:
Determining the difference value of the electrical heating on time of the air conditioner as a first set value when the difference value of the electrical heating on time of the air conditioner obtained according to the formula (1) is larger than the first set value, and determining the difference value of the electrical heating on time of the air conditioner as a second set value when the difference value of the electrical heating on time of the air conditioner obtained according to the formula (1) is smaller than the second set value;
when the on-time proportion of the air conditioner electric heating in the current period obtained according to the formula (2) is smaller than a third set value, determining the on-time proportion of the air conditioner electric heating in the current period as a third set value, and when the on-time proportion of the air conditioner electric heating in the current period obtained according to the formula (2) is larger than a fourth set value, determining the on-time proportion of the air conditioner electric heating in the current period as a fourth set value.
According to a second aspect of embodiments of the present invention, there is provided an apparatus for controlling electric heating of an air conditioner, including:
the acquiring unit is used for acquiring a current humidity value corresponding to a current period in the air conditioning action area;
The deviation determining unit is used for determining the deviation of the current humidity according to the current humidity value and a set target humidity value;
The PID unit is used for carrying out proportional, integral and derivative (PID) control according to the current humidity deviation and the humidity deviation of the previous period, and determining the starting time of the electric heating of the air conditioner in the current period;
And the control unit is used for controlling the switch of the electric heating according to the current opening time.
in an embodiment of the present invention, the deviation determining unit is further configured to determine a difference between the current humidity value and a set target humidity value as the current humidity deviation; or, performing weighted average operation on the current humidity value and humidity values corresponding to N continuous periods before the current period to obtain a current estimated humidity value, and determining a difference value between the current estimated humidity value and a set target humidity value as the current humidity deviation.
In an embodiment of the present invention, the PID unit is further configured to obtain a variation value of the humidity deviation according to the current humidity deviation and the humidity deviation of the previous period; determining the on-time proportion of the air conditioner electric heating in the current period according to formula (1) and formula (2); wherein the content of the first and second substances,
Δ Heater _ p ═ Int ((Heater _ Ki × Δ RH + DRH × Heater _ Kp) × 100)/100 — formula (1)
Heater _ p ═ Δ Heater _ p + Heater _ p1- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Δ RH is the current humidity deviation, DRH is the variation value of the humidity deviation, Heater _ Ki, Heater _ Kp are the modifiable PID calculation parameters, Δ Heater _ p is the on-time proportion difference of the air conditioner electric heating, Heater _ p is the on-time proportion of the air conditioner electric heating in the current period, and Heater _ p1 is the on-time proportion of the air conditioner electric heating in the previous period.
In an embodiment of the present invention, the PID unit is further configured to determine the current humidity deviation as zero and determine a variation value of the humidity deviation as zero when the current humidity deviation is within a set range.
in an embodiment of the present invention, the PID unit is further configured to determine the difference of the on-time ratios of the air-conditioning electrical heating as a first set value when the difference of the on-time ratios of the air-conditioning electrical heating obtained according to the formula (1) is greater than the first set value, and determine the difference of the on-time ratios of the air-conditioning electrical heating as a second set value when the difference of the on-time ratios of the air-conditioning electrical heating obtained according to the formula (1) is less than the second set value; when the on-time proportion of the air conditioner electric heating in the current period obtained according to the formula (2) is smaller than a third set value, determining the on-time proportion of the air conditioner electric heating in the current period as a third set value, and when the on-time proportion of the air conditioner electric heating in the current period obtained according to the formula (2) is larger than a fourth set value, determining the on-time proportion of the air conditioner electric heating in the current period as a fourth set value.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
In the embodiment of the invention, PID control is carried out according to the deviation of the humidity in the air-conditioning action area, and the opening time of the electric heating of the air-conditioner in the set period matched with the PID calculation power is determined, so that the output power of the electric heating is controlled by the opening and closing time of the electric heating in the set period, the output power of the electric heating is matched with the PID calculation power corresponding to the humidity, the intelligent control of the electric heating is realized, and the energy consumption is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic flow diagram illustrating a method for controlling electrical heating of an air conditioner in accordance with an exemplary embodiment;
FIG. 2 is a schematic flow diagram illustrating a method for controlling electrical heating of an air conditioner in accordance with an exemplary embodiment;
FIG. 3 is a diagram illustrating a correspondence between the on-time operation of the electric heating of the air conditioner during the current cycle, according to an exemplary embodiment;
FIG. 4 is a block diagram illustrating an air conditioner electrical heating control apparatus according to an exemplary embodiment;
fig. 5 is a block diagram illustrating an electrical heating control apparatus of an air conditioner according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
the air conditioner is a common electric appliance in daily life, and can adjust the indoor temperature, namely, raise or lower the temperature, so that the indoor temperature is matched with the preset temperature of a user. The electric heating is an auxiliary heating function of the air conditioner, and at present, a user can control the on and off of the electric heating, namely, a switch according to the practical application environment. In the embodiment of the invention, PID control can be carried out according to the deviation of the humidity in the air-conditioning action area, and the opening time of the electric heating of the air conditioner in the set period matched with the PID calculation power is determined, so that the output power of the electric heating is controlled by the opening and closing time of the electric heating in the set period, the output power of the electric heating is matched with the PID calculation power corresponding to the humidity, the intelligent control of the electric heating is realized, and the energy consumption is reduced.
Fig. 1 is a flowchart illustrating an electric heating control method of an air conditioner according to an exemplary embodiment. As shown in fig. 1, the process of the air conditioner electric heating control as shown in fig. 1 includes:
Step 101: and acquiring a current humidity value corresponding to the current period in the air conditioning action area.
In the embodiment of the invention, the output power of the electric heating can be controlled by controlling the switching time of the electric heating in the set period. Therefore, a period may be preset, for example: one cycle of 5 minutes, 8 minutes, 10 minutes, 12 minutes, etc. The period length can be determined by referring to the processing speed of the processor of the air conditioner, the heating speed of the electric heating hardware, the power and other parameters.
After the predetermined period is determined, the control of the electrical heating may be performed for each period. Here, the current humidity value corresponding to the current cycle in the air-conditioning action region is acquired. The current temperature value can be obtained through the humidity sensor, and the current temperature value can also be obtained through obtaining the current temperature value and calculating. For example, according to the current temperature value, the temperature value of the coil of the internal machine, the running frequency value of the compressor and the opening value, the current humidity value in the current temperature and humidity values is obtained through the following formula.
Rh＝A*T1+B*T2+C*hz+D*f+F
wherein Rhn is the current humidity value, Tn1 is the current temperature value, Tn2 is the internal machine coil temperature value, hzn is the compressor running frequency value, fn is the opening value, AA2, B2, C2, D, E, F are constants determined according to the type of the air conditioner, and n is the sequence of the current cycle.
For example: if the current cycle is the 50 th cycle, the current humidity value Rhn may be obtained as 35% according to the above formula.
Step 102: and determining the current humidity deviation according to the current humidity value and the set target humidity value.
The target humidity value can be directly preset, for example: rh t is 45%. Or after the user sets the preset temperature value, the comfort temperature value corresponding to the preset temperature is determined according to the corresponding relation between the stored temperature value and the comfort humidity value, so that the determined comfort humidity value can be determined as the set target humidity value.
After the current humidity value and the set target humidity value are obtained, the difference between the current humidity value and the set target humidity value can be directly determined as the current humidity deviation.
Since the electrical heating is controlled periodically, in order to further improve the control accuracy and reduce the chance of accidental errors, in another embodiment of the present invention, the process of determining the current humidity deviation may include: and performing weighted average operation on the current humidity value and humidity values corresponding to N continuous periods before the current period to obtain a current estimated humidity value, and determining a difference value between the current estimated humidity value and a set target humidity value as a current humidity deviation.
for example: n is 5, so that the current estimated humidity value Rhp can be obtained by averaging the six data Rhn, Rhn-1, Rhn-2, Rhn-3, Rhn-4, and Rhn-5, and thus the current humidity deviation Δ RH is Rhp-Rht.
step 103: and performing proportional, integral and derivative (PID) control according to the current humidity deviation and the humidity deviation of the previous period, and determining the opening time of the electric heating of the air conditioner in the current period.
The current humidity bias has been determined and the corresponding humidity bias value for each cycle may be saved so that the humidity bias for the previous cycle may also be known. Alternatively, the humidity deviation of the previous cycle may be obtained from the stored humidity value for each cycle and the set target humidity value.
therefore, the variation value of the humidity deviation, i.e. the variation value DRH of the humidity deviation is Δ RH- Δ RH1, can be obtained according to the current humidity deviation and the humidity deviation of the previous cycle, where Δ RH1 is the humidity deviation of the previous cycle.
Then, according to the formula (1) and the formula (2), determining the on-time proportion of the electric heating of the air conditioner in the current period; wherein the content of the first and second substances,
Δ Heater _ p ═ Int ((Heater _ Ki × Δ RH + DRH × Heater _ Kp) × 100)/100 — formula (1)
Heater _ p ═ Δ Heater _ p + Heater _ p1- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Δ RH is the current humidity deviation, DRH is the variation value of the humidity deviation, Heater _ Ki,
Heater _ Kp is a modifiable proportional, integral, derivative (PID) calculation parameter, Δ Heater _ p is a difference value of the on-time ratio of the air conditioner electric heating, Heater _ p is the on-time ratio of the air conditioner electric heating in the current period, and Heater _ p1 is the on-time ratio of the air conditioner electric heating in the previous period.
Also, the air conditioner may preserve the on-time ratio for each cycle. For example: the formula (1) may determine that the on-time ratio difference Δ Heater _ p of the air conditioner electric heating is 5%, and the on-time ratio Heater _ p1 in the previous cycle is 30%, so that the on-time ratio Heater _ p in the current cycle of the air conditioner electric heating may be 35%.
Finally, the on-time of the air conditioner electric heating in the current cycle can be determined according to the cycle and the on-time ratio Heater _ p. For example: if the set period is 8 minutes and 1% corresponds to 4.8 seconds, it can be determined that the on time of the electric heating is 4.8 × 35 to 168 seconds and the off time of the electric heating is 312 seconds in the current period.
Step 104: and controlling the switch of the electric heating according to the current opening time.
after the on-time of the electric heating is determined, the switch of the electric heating can be controlled according to the current on-time. For example: during the 8 minute period, the electrical heating was on for 168 seconds at the set power, while for the remaining 312 seconds, the electrical heating was off.
Therefore, in the embodiment, the PID control is performed according to the deviation of the humidity in the air conditioning action area, and the on-time of the electric heating of the air conditioner in the set period matched with the PID calculation power is determined, so that the output power of the electric heating is controlled by the on-off time of the electric heating in the set period, and the output power of the electric heating is matched with the PID calculation power corresponding to the humidity, thereby realizing the intelligent control of the electric heating, and the electric heating does not always run, thereby reducing the energy consumption.
In order to reduce the operation load of the air conditioner, generally, when the obtained comparison is small in step 102, which indicates that the current humidity value is close to the set target humidity value, the on time of the electric heating of the air conditioner in the current period may not be adjusted, and therefore, in another embodiment of the present invention, when the current humidity deviation is within the set range, the current humidity deviation is determined to be zero, and the variation value of the humidity deviation is determined to be zero. For example: -5< Δ RH <5, Δ RH may be determined to be 0 and the variation DRH of the humidity deviation may be determined to be 0, such that Δ Heater _ p is 0 and Heater _ p is Heater _ p1, such that the on-time of the electric heating of the air conditioner in the current cycle may not be adjusted. Generally, in the setting range of the target humidity value, the comfort level sensed by the air conditioner user is relatively approximate, so that if the current humidity deviation is in the setting range, the on-time of the electric heating of the air conditioner in the current period does not need to be continuously adjusted, and thus, the consumption of resources can be reduced.
In addition, the embodiment of the present invention may further control the on-time ratio difference of the electric heating of the air conditioner, and also control Δ Heater _ p within a certain range, so that, when the on-time ratio difference of the electric heating of the air conditioner obtained according to the formula (1) is greater than the first set value, the on-time ratio difference of the electric heating of the air conditioner is determined as the first set value, and when the on-time ratio difference of the electric heating of the air conditioner obtained according to the formula (1) is less than the second set value, the on-time ratio difference of the electric heating of the air conditioner is determined as the second set value.
For example: when Δ Heater _ p is ≧ 5%, Δ Heater _ p is determined to be 5%, and when Heater _ p ≦ -5%, Δ Heater _ p is determined to be-5%.
in the embodiment of the invention, if the proportion of the opening time of the electric heating of the air conditioner in the current period is larger, the control precision of the indoor temperature and the humidity in the air conditioning action area is higher, but higher energy consumption exists, the proportion of the opening time of the electric heating of the air conditioner in the current period is higher, and the control precision of the indoor temperature and the humidity in the air conditioning action area is lower, so that both the energy consumption and the control precision are taken into consideration, the proportion of the opening time of the electric heating of the air conditioner in the current period can be controlled within a certain range according to the type of the air conditioner and the performance of the electric heating of the air conditioner, and thus, when the proportion of the opening time of the electric heating of the air conditioner in the current period obtained according to the formula (2) is smaller than a third set value, the proportion of the opening time of the electric heating of the air conditioner in the current period is determined as a third set value, and when the proportion of the opening time, and determining the on-time proportion of the electric heating of the air conditioner in the current period as a fourth set value. For example: when the Heater _ p is less than or equal to 0, it is determined that the Heater _ p is 0, and the Heater _ p is greater than or equal to 50%, and it is determined that the Heater _ p is 50%.
Of course, the above-mentioned setting range is not limited to (-5,5), and may be (-3,3), (-4, -4), etc.; the first set point, the second set point is also not limited to 5%, -5%, but also 3%, -3%, or 4%, -4%, etc.; similarly, the third setting value and the fourth setting value are not limited to 0, 50%, but may be 1%, 40%, or 0, 35%, for example.
The following operational flows are grouped into specific embodiments to illustrate the methods provided by the embodiments of the present disclosure.
In this embodiment, the period may be 10 minutes, the range is set to (-5,5), the first set value, the second set value are 3%, -3%, the third set value, the fourth set value are 0, 40%, respectively.
fig. 2 is a flowchart illustrating an electric heating control method of an air conditioner according to an exemplary embodiment, where as shown in fig. 2, the electric heating control process of the air conditioner includes:
Step 201: and acquiring a current humidity value corresponding to the current period in the air conditioning action area.
The current temperature value, the temperature value of the coil pipe of the internal machine and the running frequency value of the compressor are obtained through the temperature sensor, so that the current humidity value in the current temperature and humidity value can be obtained through the following steps.
Rh＝A*T1+B*T2+C*hz+E
wherein Rh is the current humidity value, T1 is the current temperature value, T2 is the internal machine coil temperature value, hz is the compressor running frequency value, and A1, B1, C1 and E are constants determined according to the type of the air conditioner.
Step 202: and carrying out weighted average operation on the current humidity value and humidity values corresponding to N continuous periods before the current period to obtain the current estimated humidity value.
here, if the current humidity value is Rhn, N is 11, and 12 numbers of Rhn, Rhn-1, Rhn-2 … Rhn-11 are summed and then the sum is removed from the average, so that the current estimated humidity value Rhp can be obtained.
Step 203: and determining the difference value between the current estimated humidity value and the set target humidity value as the current humidity deviation.
The current estimated humidity value Rhp, the set target humidity value Rht, and thus the current humidity deviation Δ RH ═ Rhp-Rht.
Step 204: and obtaining a variation value of the humidity deviation according to the current humidity deviation and the humidity deviation of the previous period.
Accordingly, the variation DRH of the humidity deviation is Δ RH — Δ RH 1.
Here, it is also determined whether Δ RH is within a set range (-5,5), and if so, Δ RH is determined to be 0 and DRH is determined to be 0.
Step 205: according to the formula (1) and the formula (2), the on-time proportion of the electric heating of the air conditioner in the current period is determined.
Δ Heater _ p ═ Int ((Heater _ Ki × Δ RH + DRH × Heater _ Kp) × 100)/100 — formula (1)
heater _ p ═ Δ Heater _ p + Heater _ p1- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
wherein Δ RH is a current humidity deviation, DRH is a variation value of the humidity deviation, Heater _ Ki, and Heater _ Kp are modifiable PID calculation parameters, Δ Heater _ p is a difference value of an on-time ratio of the air conditioner electric heating, Heater _ p is an on-time ratio of the air conditioner electric heating in a current period, and Heater _ p1 is an on-time ratio of the air conditioner electric heating in a previous period.
for example: for the air conditioner in the present embodiment, Heater _ Ki is 0.001 and Heater _ Kp is 0.003, and Δ RH is 10 and DRH is 5, so that Δ Heater _ p (0.001 +0.003 + 5) is 0.025, i.e., 2.5%, can be determined according to formula (1), and then Heater _ p can be determined according to formula (2).
Similarly, if Δ Heater _ p is equal to or greater than 3%, Δ Heater _ p is determined to be 3%, and if Δ Heater _ p is equal to or less than-3%, Δ Heater _ p is determined to be-3%; when the Heater _ p is equal to or less than 0, it is determined that the Heater _ p is equal to or less than 0, and when the Heater _ p is equal to or more than 40%, it is determined that the Heater _ p is equal to or more than 40%.
step 206: and determining the starting time of the electric heating of the air conditioner in the current period according to the preset period and the starting time proportion of the electric heating of the air conditioner in the current period.
The cycle time is 10 minutes, so 1% ═ 6 seconds, so Heater _ p equals X%, and the on time is X × 6 seconds.
Fig. 3 is a schematic diagram illustrating the operation of the on-time of the electric heating of the air conditioner in the current cycle according to an exemplary embodiment. As shown in fig. 3, if Heater _ p is 40%. And if so, the air conditioner is electrically heated in the current 10-minute period, and the starting time is 240 seconds. If Heater _ p is 5%, the air conditioner is electrically heated in the current 10-minute period, and the opening time is 30 seconds.
Step 207: and controlling the switch of the electric heating according to the current opening time.
After the on-time of the electric heating is determined, the switch of the electric heating can be controlled according to the current on-time. For example: during the current 10 minute period, the electrical heating was turned on for 240 seconds at the set power, while during the remaining 360 seconds, the electrical heating was turned off.
Therefore, in the embodiment, the PID control is performed according to the deviation of the humidity in the air conditioning action area, and the on-time of the electric heating of the air conditioner in the set period matched with the PID calculation power is determined, so that the output power of the electric heating is controlled by the on-off time of the electric heating in the set period, and the output power of the electric heating is matched with the PID calculation power corresponding to the humidity, thereby realizing the intelligent control of the electric heating, and the electric heating does not always run, thereby reducing the energy consumption.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.
According to the above process of the air conditioner electric heating control, an air conditioner electric heating control device can be constructed.
Fig. 4 is a block diagram illustrating an electrical heating control apparatus of an air conditioner according to an exemplary embodiment. As shown in fig. 4, the apparatus includes: an acquisition unit 410, a deviation determination unit 420, a PID unit 430 and a control unit 440, wherein,
the obtaining unit 410 is configured to obtain a current humidity value corresponding to a current period in an air conditioning action area.
and a deviation determining unit 420, configured to determine a current humidity deviation according to the current humidity value and the set target humidity value.
and a PID unit 430, configured to perform proportional, integral, and derivative (PID) control according to the current humidity deviation and the humidity deviation of the previous period, and determine an on-time of the air conditioner electrical heating in the current period.
And a control unit 440 for controlling the switching of the electric heating according to the current on-time.
In an embodiment of the present invention, the deviation determining unit 420 is further configured to determine a difference between the current humidity value and the set target humidity value as the current humidity deviation; or, performing weighted average operation on the current humidity value and humidity values corresponding to N continuous periods before the current period to obtain a current estimated humidity value, and determining a difference value between the current estimated humidity value and a set target humidity value as a current humidity deviation.
In an embodiment of the present invention, the PID unit 430 is further configured to obtain a variation value of the humidity deviation according to the current humidity deviation and the humidity deviation of the previous period; determining the proportion of the on-time of the electric heating of the air conditioner in the current period according to the formula (1) and the formula (2); wherein the content of the first and second substances,
Δ Heater _ p ═ Int ((Heater _ Ki × Δ RH + DRH × Heater _ Kp) × 100)/100 — formula (1)
Heater _ p ═ Δ Heater _ p + Heater _ p1- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Δ RH is the current humidity deviation, DRH is the variation value of the humidity deviation, Heater _ Ki, Heater _ Kp are the modified PID calculation parameters, Δ Heater _ p is the difference value of the on-time ratio of the electric heating of the air conditioner, Heater _ p is the on-time ratio of the electric heating of the air conditioner in the current period, and Heater _ p1 is the on-time ratio of the electric heating of the air conditioner in the previous period.
in an embodiment of the present invention, the PID unit 430 is further configured to determine the current humidity deviation as zero and determine the variation value of the humidity deviation as zero when the current humidity deviation is within the set range.
In an embodiment of the present invention, the PID unit 430 is further configured to determine the difference of the on-time ratios of the electrical heating of the air conditioner as a first set value when the difference of the on-time ratios of the electrical heating of the air conditioner obtained according to the formula (1) is greater than the first set value, and determine the difference of the on-time ratios of the electrical heating of the air conditioner as a second set value when the difference of the on-time ratios of the electrical heating of the air conditioner obtained according to the formula (1) is less than the second set value; and when the on-time proportion of the electric heating of the air conditioner in the current period obtained according to the formula (2) is smaller than the third set value, determining the on-time proportion of the electric heating of the air conditioner in the current period as the third set value, and when the on-time proportion of the electric heating of the air conditioner in the current period obtained according to the formula (2) is larger than the fourth set value, determining the on-time proportion of the electric heating of the air conditioner in the current period as the fourth set value.
the following illustrates an apparatus provided by an embodiment of the present disclosure.
fig. 5 is a block diagram illustrating an electrical heating control apparatus of an air conditioner according to an exemplary embodiment. As shown in fig. 5, the apparatus includes: an acquisition unit 410, a deviation determination unit 420, a PID unit 430 and a control unit 440.
the obtaining unit 410 may obtain a current humidity value in the current temperature and humidity value according to the current temperature value obtained by the temperature sensor, the temperature value of the internal machine coil, and the obtained compressor operation frequency value, as follows.
Rh＝A*T1+B*T2+C*hz+E
wherein Rh is the current humidity value, T1 is the current temperature value, T2 is the internal machine coil temperature value, hz is the compressor running frequency value, and A1, B1, C1 and E are constants determined according to the type of the air conditioner.
In this way, the deviation determination unit 420 may perform a weighted average operation on the 12 humidity values to obtain the current estimated humidity value Rhp. The 12 humidity values are Rhn, Rhn-1 and Rhn-2 … Rhn-11 respectively, wherein Rhn is the current humidity value. Then, the deviation determination unit 420 may obtain a variation value of the humidity deviation according to the current humidity deviation and the humidity deviation of the previous cycle. That is, the current humidity deviation Δ RH, the humidity deviation Δ RH1 of the previous cycle, and the change value DRH of the humidity deviation Δ RH — Δ RH 1.
And the PID unit 430 may determine the on-time ratio of the air conditioner electric heating in the current cycle according to equation (1), as well as equation (2).
Wherein, if Δ Heater _ p is equal to or greater than 3%, the PID unit 430 may determine that Δ Heater _ p is equal to or greater than 3%, and if Δ Heater _ p is equal to or less than-3%, the PID unit 430 may determine that Δ Heater _ p is equal to or less than-3%; and Heater _ p is equal to or less than 0, the PID unit 430 may determine that Heater _ p is equal to 0, and Heater _ p is equal to or more than 40%, and the PID unit 430 may determine that Heater _ p is equal to 40%.
In addition, the PID unit 430 may also determine the on-time of the air conditioner electrical heating in the current period according to the preset period and the on-time ratio of the air conditioner electrical heating in the current period. Also referring to fig. 3, if Heater _ p is 40%. And if so, the air conditioner is electrically heated in the current 10-minute period, and the starting time is 240 seconds. If Heater _ p is 5%, the air conditioner is electrically heated in the current 10-minute period, and the opening time is 30 seconds.
Accordingly, the control unit 440 may control the switching of the electric heating according to the current on-time. After the on-time of the electric heating is determined, the control unit 440 may control the on-off of the electric heating according to the current on-time. For example: during the current 10 minute period, the electrical heating was turned on for 240 seconds at the set power, while during the remaining 360 seconds, the electrical heating was turned off.
Therefore, in the embodiment, the PID control is performed according to the deviation of the humidity in the air conditioning action area, and the on-time of the electric heating of the air conditioner in the set period matched with the PID calculation power is determined, so that the output power of the electric heating is controlled by the on-off time of the electric heating in the set period, and the output power of the electric heating is matched with the PID calculation power corresponding to the humidity, thereby realizing the intelligent control of the electric heating, and the electric heating does not always run, thereby reducing the energy consumption.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
these computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (8)
1. A method for controlling electric heating of an air conditioner is characterized by comprising the following steps:
Acquiring a current humidity value corresponding to a current period in the air conditioning action area;
Determining a difference value between the current humidity value and a set target humidity value as the current humidity deviation, or performing weighted average operation on the current humidity value and humidity values corresponding to N continuous periods before the current period to obtain a current estimated humidity value, and determining a difference value between the current estimated humidity value and the set target humidity value as the current temperature deviation;
According to the current humidity deviation and the humidity deviation of the previous period, performing proportional, integral and derivative (PID) control to determine the starting time of the electric heating of the air conditioner in the current period;
Controlling a switch of the electric heating according to the current opening time;
wherein, the electric heating is an auxiliary heating function of the air conditioner.
2. the method of claim 1, wherein said determining an on-time of said air conditioner electrical heating during said current cycle comprises:
obtaining a variation value of the humidity deviation according to the current humidity deviation and the humidity deviation of the previous period;
Determining the on-time proportion of the air conditioner electric heating in the current period according to formula (1) and formula (2); wherein the content of the first and second substances,
Δ Heater _ p ═ Int ((Heater _ Ki × Δ RH + DRH × Heater _ Kp) × 100)/100 — formula (1)
Heater _ p ═ Δ Heater _ p + Heater _ p1- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Δ RH is the current humidity deviation, DRH is the variation value of the humidity deviation, Heater _ Ki, Heater _ Kp are the modifiable PID calculation parameters, Δ Heater _ p is the on-time proportion difference of the air conditioner electric heating, Heater _ p is the on-time proportion of the air conditioner electric heating in the current period, and Heater _ p1 is the on-time proportion of the air conditioner electric heating in the previous period.
3. The method of claim 2, wherein said obtaining a change value of the humidity deviation comprises:
when the current humidity deviation is within a set range, determining the current humidity deviation as zero, and determining a variation value of the humidity deviation as zero.
4. The method of claim 2, wherein said determining a proportion of on-time of said air conditioner electrical heating during said current cycle further comprises:
Determining the difference value of the electrical heating on time of the air conditioner as a first set value when the difference value of the electrical heating on time of the air conditioner obtained according to the formula (1) is larger than the first set value, and determining the difference value of the electrical heating on time of the air conditioner as a second set value when the difference value of the electrical heating on time of the air conditioner obtained according to the formula (1) is smaller than the second set value;
When the on-time proportion of the air conditioner electric heating in the current period obtained according to the formula (2) is smaller than a third set value, determining the on-time proportion of the air conditioner electric heating in the current period as a third set value, and when the on-time proportion of the air conditioner electric heating in the current period obtained according to the formula (2) is larger than a fourth set value, determining the on-time proportion of the air conditioner electric heating in the current period as a fourth set value.
5. An apparatus for controlling electric heating of an air conditioner, comprising:
The acquiring unit is used for acquiring a current humidity value corresponding to a current period in the air conditioning action area;
A deviation determining unit for determining a difference between the current humidity value and a set target humidity value as the current humidity deviation; or, performing weighted average operation on the current humidity value and humidity values corresponding to N continuous periods before the current period to obtain a current estimated humidity value, and determining a difference value between the current estimated humidity value and a set target humidity value as the current humidity deviation;
the PID unit is used for carrying out proportional, integral and derivative (PID) control according to the current humidity deviation and the humidity deviation of the previous period, and determining the starting time of the electric heating of the air conditioner in the current period;
the control unit is used for controlling the switch of the electric heating according to the current starting time;
Wherein, the electric heating is an auxiliary heating function of the air conditioner.
6. the apparatus of claim 5,
the PID unit is further used for obtaining a change value of the humidity deviation according to the current humidity deviation and the humidity deviation of the previous period; determining the on-time proportion of the air conditioner electric heating in the current period according to formula (1) and formula (2); wherein the content of the first and second substances,
Δ Heater _ p ═ Int ((Heater _ Ki × Δ RH + DRH × Heater _ Kp) × 100)/100 — formula (1)
Heater _ p ═ Δ Heater _ p + Heater _ p1- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Δ RH is the current humidity deviation, DRH is the variation value of the humidity deviation, Heater _ Ki, Heater _ Kp are the modifiable PID calculation parameters, Δ Heater _ p is the on-time proportion difference of the air conditioner electric heating, Heater _ p is the on-time proportion of the air conditioner electric heating in the current period, and Heater _ p1 is the on-time proportion of the air conditioner electric heating in the previous period.
7. The apparatus of claim 6,
the PID unit is further used for determining the current humidity deviation as zero and determining the change value of the humidity deviation as zero when the current humidity deviation is within a set range.
8. The apparatus of claim 6,
the PID unit is further configured to determine the difference value of the electrical heating on time of the air conditioner as a first set value when the difference value of the electrical heating on time of the air conditioner obtained according to the formula (1) is greater than the first set value, and determine the difference value of the electrical heating on time of the air conditioner as a second set value when the difference value of the electrical heating on time of the air conditioner obtained according to the formula (1) is less than the second set value; when the on-time proportion of the air conditioner electric heating in the current period obtained according to the formula (2) is smaller than a third set value, determining the on-time proportion of the air conditioner electric heating in the current period as a third set value, and when the on-time proportion of the air conditioner electric heating in the current period obtained according to the formula (2) is larger than a fourth set value, determining the on-time proportion of the air conditioner electric heating in the current period as a fourth set value.
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| PCT/CN2017/109306 WO2019024301A1 (en) | 2017-08-03 | 2017-11-03 | Control method and device for self-cleaning of air conditioner |
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| CN109357381B (en) * | 2018-11-02 | 2021-04-20 | 青岛海尔空调器有限总公司 | Air conditioner control method and device and computer storage medium |
| CN109357379B (en) * | 2018-11-02 | 2021-05-25 | 青岛海尔空调器有限总公司 | Air conditioner control method and device and computer storage medium |
| CN110427059B (en) * | 2019-07-23 | 2021-06-04 | 江苏拓米洛环境试验设备有限公司 | Temperature and humidity testing method and device for damp-heat test box |
| CN111237997B (en) * | 2020-01-19 | 2021-04-20 | 广东美的制冷设备有限公司 | Air conditioner and control method and control device thereof |
| CN112212474B (en) * | 2020-09-14 | 2022-02-01 | 海信（山东）空调有限公司 | Dehumidifier and dehumidification control method |
| CN114811825A (en) * | 2022-03-23 | 2022-07-29 | 青岛海尔空调器有限总公司 | Control method and device for preventing condensation of air conditioner, storage medium and air conditioner |
| CN115220485A (en) * | 2022-07-25 | 2022-10-21 | 欧伏电气股份有限公司 | Humidity control method, device and system and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201401875Y (en) * | 2009-04-17 | 2010-02-10 | 广东志高空调有限公司 | Dewdrop-free air conditioner |
| CN103727622A (en) * | 2014-01-10 | 2014-04-16 | 海信（山东）空调有限公司 | Constant-temperature and constant-humidity air conditioner and control method thereof |
| CN105674477A (en) * | 2016-01-04 | 2016-06-15 | 珠海格力电器股份有限公司 | Control method and device for auxiliary electric heating of air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59202347A (en) * | 1983-05-04 | 1984-11-16 | Hitachi Ltd | Air conditioner |
-
2017
- 2017-08-03 CN CN201710657744.4A patent/CN107525229B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201401875Y (en) * | 2009-04-17 | 2010-02-10 | 广东志高空调有限公司 | Dewdrop-free air conditioner |
| CN103727622A (en) * | 2014-01-10 | 2014-04-16 | 海信（山东）空调有限公司 | Constant-temperature and constant-humidity air conditioner and control method thereof |
| CN105674477A (en) * | 2016-01-04 | 2016-06-15 | 珠海格力电器股份有限公司 | Control method and device for auxiliary electric heating of air conditioner |
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