JP2002286274A - Control method and control device for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control method or a control device for an air conditioner, which is capable of controlling a control object, such as an energy, a cost or an environmental load, delicately in accordance with the purpose of use and capable of providing amenity. SOLUTION: A PMV curve and present values of an objective space for air conditioning are obtained employing a temperature and a humidity as initial variables. Subsequently, the initial variables are converted into the variables of energy mode to obtain the PM curve and present values in the variables. Thereafter, the position of an objective point, positioned on the PMV curve and approximated to the present value, is obtained. Subsequently, amounts of change in the temperature and the humidity from the present value to the objective point are obtained respectively. Thereafter, commands are outputted to the air conditioner in accordance with the amounts of change in the temperature and the humidity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for controlling an air conditioner.

[0002]

Background of the Invention Comfort in a warm environment is ASHRA
E standard (United States Heating, Refrigeration and Air Conditioning Industry Association standard: ISO7730
Is widely spread as an international standard for thermal environments), which is defined as "a state of mind expressing satisfaction with the thermal environment." Here, in order to grasp the concept of comfort, it is necessary to objectively evaluate the bodily sensation of each individual. For this purpose, various methods have been sought.

[0003] In general, four basic external environmental elements such as temperature, average radiant temperature, airflow and humidity, and two human body information elements such as clothes and metabolism are included as thermal elements constituting a feeling of comfort. Is taken into account. Regarding these six elements,
As a method to evaluate the combined effect, PMV (Predicte
d Mean Vote: There is an expected average thermal feeling report value) index. It was published as a PMV theory by Professor Fanger of the Technical University of Denmark.
It is internationally standardized as SO-7730. PMV values are +3 (hot), +2 (warm), +1 (slightly war
m), 0 (neutral), -1 (slightly cool,) -2 (c
ool) and -3 (cold). This PMV value,
Predicted percentage of DiPD that numerically predicts what percentage of the population composition feels dissatisfied in that environment
ssatisfied: rate of PMV-P
PD correlation diagram (see FIG. 19; horizontal axis: PMV value, vertical axis: PP
D dissatisfaction rate).

[0004] According to this, even when the PMV value is ± 0, that is, when the environment is considered to be the most comfortable, 5% (PPD index = 5%) feel dissatisfied. By the way, A
Comfort standards defined by the SRAE standard (55-1981.
In order to satisfy PPD ≦ 20%, which is 4), the PMV
≤ ± 0.8.

[0005] As described above, by collecting information on four elements of the external physical environment and two elements of the human body information, which are the basis of the PMV index, it is possible to objectively express the thermal sensation as a numerical value, though only as an average. I can understand. This PM
By using the V theory, the necessary minimum comfort level can be objectively grasped.

Conventionally, reference 1 (Japanese Patent Laid-Open No. 6-28859)
5), there is a technology for controlling air conditioning using a PMV index. However, this conventional technique merely performs temperature control using a PMV index. In this case, even if the comfort is satisfied to some extent, it is not always possible to achieve energy saving, cost saving or environmental saving at a high level.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and controls objects to be controlled, such as energy, cost, or environmental load, in detail according to the purpose of use, and provides comfort. It is an object of the present invention to provide a control method or a control device for an air conditioner, which can provide the following.

[0008]

SUMMARY OF THE INVENTION Therefore, a method for controlling an air conditioner according to the present invention includes the following steps. (A) With the temperature and humidity as initial variables, a PMV curve,
A step of obtaining the current value of the space to be air-conditioned; (b) converting the initial variable into a mode-compatible variable; and obtaining the PMV curve and the current value of the mode-dependent variable; (c) Determining the position of a target point on the PMV curve and close to the current value; (d) calculating the change in temperature and humidity from the current value to the target point, respectively; (E) issuing a command to the air conditioner to change the temperature and the humidity in accordance with the amount of change between the temperature and the humidity.

According to a second aspect of the present invention, a method for controlling an air conditioner includes the following steps. (A) With the temperature and humidity as initial variables, a PMV curve,
A step of obtaining the current value of the space to be air-conditioned; (b) converting the initial variable into a mode-compatible variable; and obtaining the PMV curve and the current value of the mode-dependent variable; (c) Determining the position of the target point on the PMV curve and close to the current value; (d) Next, assuming that the air volume in the space to be air-conditioned changes, P
Obtain the MV curve and repeat steps (b) and (c)
Performing a step of obtaining the positions of a plurality of target points, (e) obtaining a change amount converted by the mode corresponding variable to reach each target point from a current value;
(F) Next, a step of obtaining a target point at which the amount of change is minimum; (g) Next, controlling the temperature, humidity, and air flow so as to reach the minimum target point from the current value. Sending the command to the air conditioner.

According to a third aspect of the present invention, a method for controlling an air conditioner includes the following steps. (A) a step of obtaining a PMV curve at the maximum air volume possible in the air conditioner and a current value of the air-conditioned space using temperature and humidity as initial variables, and (b) converting the initial variables into mode-dependent variables. Acquiring the PMV curve and the current value in the mode-corresponding variable; and (c) determining the position of a target point on the PMV curve at the maximum airflow and close to the current value. (D) sending a command to the air conditioner to control the temperature, humidity, and air flow so as to reach the target point from the current value.

According to a fourth aspect of the present invention, a method for controlling an air conditioner includes the following steps. (A) obtaining a PMV curve and a current value of a space to be air-conditioned using a first variable and a second variable controlled by the air-conditioning device as initial variables; Converting the variable into a variable and acquiring the PMV curve and the current value in the mode-corresponding variable. (C) Next, the position of the target point on the PMV curve and close to the current value is determined. (D) obtaining the current value from the current value to the target point;
Calculating a change amount in each of the first variable and the second variable; and (e) changing the first variable and the second variable in accordance with the change amounts of the first variable and the second variable.
Issuing a command to the air conditioner.

A method for controlling an air conditioner according to a fifth aspect includes the following steps. (A) obtaining a PMV curve and a current value of a space to be air-conditioned using a first variable and a second variable controlled by the air-conditioning device as initial variables; Converting the variable into a variable and acquiring the PMV curve and the current value in the mode-corresponding variable. (C) Next, the position of the target point on the PMV curve and close to the current value is determined. (D) obtaining a PMV curve for the initial variable, assuming that the third variable of the space to be air-conditioned has changed, and performing steps (b) and (c) again;
Thus, a step of determining the positions of the plurality of target points,
(E) a step of obtaining a change amount converted by the mode-corresponding variable to reach each target point from the current value; (f) a step of obtaining a target point at which the change amount is minimum; (g) Then, sending a command for controlling the first to third variables to the air conditioner so as to reach the minimum target point from the current value.

According to a sixth aspect of the present invention, in the method for controlling an air conditioner according to any one of the first to fifth aspects, the mode-corresponding variable is any one of energy, cost, and environmental load.

According to a seventh aspect of the present invention, there is provided a control device for an air conditioner having a control unit and a measuring unit, wherein the measuring unit measures temperature and humidity in a space to be air-conditioned. Calculate the control amount that minimizes the amount of change from the current value to the target point in the state converted by the corresponding variable,
The air conditioner is controlled based on this control amount.

According to an eighth aspect of the present invention, in the control device for an air conditioner according to the seventh aspect, the measuring unit further measures an air volume in a space to be air-conditioned.

A method for controlling an air conditioner according to a ninth aspect includes the following steps. (A) With the temperature and humidity as initial variables, a PMV curve,
A step of obtaining the current value of the space to be air-conditioned; (b) converting the initial variable into a mode-compatible variable; and obtaining the PMV curve and the current value of the mode-dependent variable; (c) Determining the position of a target point on the PMV curve that is close to the current value; and (d) changing the temperature and humidity to approach the target value. Issuing a command to

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A control method and a control device for an air conditioner according to an embodiment of the present invention will be described with reference to the accompanying drawings. First, a schematic configuration of the control device will be described with reference to FIG.

The control device 1 includes a control unit 10 and a measurement unit 2
0, a learning unit 30, and a communication unit 40.

The control unit 10 is connected to the air conditioner 3 and can send a control signal to the air conditioner 3. The control unit 10 is, in terms of hardware,
It can be easily configured using a well-known CPU, memory, external storage device, interface, and the like. Control unit 1
In this example, the operation of 0 is basically realized by computer software incorporated in hardware. However, software functions can be replaced by hardware. The detailed operation of the control unit 10 will be described later. The measurement unit 20 is for measuring temperature, humidity, and air volume in a space to be air-conditioned (for example, a room in a building or an entertainment facility). However, a configuration in which the air volume is not measured is also possible. The sensor 2 that can measure necessary variables is connected to the measuring unit 20. The measuring unit 20 receives an output (for example, a voltage value) from the sensor 2 and converts it into a necessary physical quantity (for example, a temperature, a humidity, and an air volume) and acquires it. The learning unit 30 uses, for example, a neural network circuit, and can add a learning function in the control method of the control unit 10. The communication unit 40 can perform communication between the control device 1 and the outside. Since the learning unit 30 and the communication unit 40 do not directly relate to the gist of the present invention, detailed description will be omitted.

(Control Method in Heating) Next, a control method according to the present embodiment, mainly realized by the control unit 10, will be described. First, a control method in winter heating will be described. In this method, regarding the metabolic rate and the amount of clothing (CLO value), numerical values according to the work content are stored in a storage device in advance. Examples of numerical values are shown in FIGS. When this method is performed, the user sets one of the situations. The average radiant temperature and airflow (air volume) are treated as constants in heating, since they have little effect.

FIG. 4 schematically shows this method. In this method, first, as shown in FIG. 5, the PMV curve and the current value of the space to be air-conditioned are acquired using temperature and humidity as initial variables (first and second variables). Here, the relative humidity is used as the humidity.

The PMV curve shows a metabolic rate of 58 (W / m ² ),
Clothing amount 0.155 (m ² ° C / W), wind speed 0.2 (m /
It is a curve of PMV = -0.15 assuming s). The reason that PMV = −0.15 is that this PMV value is
This is because it can be used as a boundary value between pleasant and unpleasant during heating in winter. Therefore, the left side in the figure is a cold or cool area and the right side is a hot or warm area across the boundary indicated by the PMV curve. In winter heating, when you cross the PMV curve from the cold area on the left side,
That is, the vehicle enters the comfortable area. As described above, by using the PMV curve of the limit value, excessive comfort can be prevented. Thus, a PMV curve having an appropriate PMV value can be used according to the design intention.

The current value is obtained by using the measurement result of the measurement unit 20. The values measured by the measuring unit 20 are shown in the upper right of FIG. Of these, the wind speed is a value that is not particularly used during heating, and need not be measured. The wind temperature in FIG. 5 is the air temperature.
As shown in FIG. 5, the current value of PMV is -0.25, which is in the discomfort area.

(Conversion to a Variable Corresponding to a Mode in the Energy-Saving Mode) Next, an initial variable is converted to a variable corresponding to a mode. In the following example, an energy saving mode is assumed as the mode. Other modes will be described later. In the energy saving mode, energy is used as a mode-corresponding variable. FIG. 6 shows the results of converting the initial variables, temperature and humidity, into energy. Thereby, the PMV curve and the current value in this mode-corresponding variable (that is, the coordinate system) can be obtained as shown in FIG. The temperature-energy conversion is obtained by calculating the amount of power required to change the temperature by 1 ° C.
The results are normalized to 0 ° C. In short, since the difference is important, any normalization may be used. Similarly, the humidity-energy conversion is obtained by calculating the amount of power required for a unit humidity change, and
% Is shown normalized to 0W. Thereby, the vertical axis and the horizontal axis can be set to the same unit (here, energy).

Next, the position of the target point on the PMV curve that is close to the current value is determined. In this example,
Although the closest target point is determined, how close the target point is determined can be determined according to design conditions. There are conventionally various algorithms for obtaining the closest target point, and these may be appropriately used. For example, the simplest method is to find the distance between an arbitrary point on the curve and the current value, shift the arbitrary point as needed, and find the distance, and use the point closest to the target as the target point. is there. In FIG. 7, the current value is indicated by a symbol a and the target point is indicated by a symbol b. Then
It can be seen that the amount of change in energy to reach the target point from the current value is c'-a in temperature and d'-a in humidity. However, it is difficult to directly instruct the general air conditioner 3 based on the amount of change in energy. Of course, the amount of change in energy is instructed directly to the air conditioner 3,
If the desired PMV value can be obtained by controlling the temperature and humidity, it is possible to do so.

Then, the amounts of change in temperature and humidity from the current value to the target point are obtained. As the calculation method, the above-described temperature-energy, humidity-
Energy conversion may be used. In addition, for example,
As shown in FIG. 8, a target value b may be represented on a temperature and humidity coordinate system, and the amount of change in temperature and humidity up to that may be determined. The changes in temperature and humidity in this example are as follows. Temperature: 0.34 ° C. rise (c′-a) Humidity: 16% rise (d′-a) On the other hand, the conventional air conditioning control method is based on temperature control using the PMV index. In that case,
By controlling only the temperature, an attempt is made to reach point c in FIG. The amount of change is as follows: temperature: 0.72 ° C. increase (ca).

The comparison between the two is as follows. Conventional air conditioning control: power consumption 20.6 kW (corresponding to ca) Air conditioning control of this embodiment: power consumption 3.1 kW (c '
-A) Power consumption 2.5 kW (corresponding to d'-a) Total power consumption 5.6 kW (corresponding to ba) Therefore, the reduced power is 15.6 kW, which is lower than the conventional value. The reduction rate is 72.8%.

Therefore, according to this embodiment, there is an advantage that a desired PMV value can be achieved with a small amount of energy consumption.

(Conversion to Variable Corresponding to Mode in Cost Reduction Mode) Next, an example of operation in the cost reduction mode will be described. In the cost reduction mode, the cost is used as the mode corresponding variable. FIG. 9 shows the result of converting the initial variables temperature and humidity into costs. Thereby, the PMV curve and the current value in this mode-corresponding variable (that is, the coordinate system) can be obtained. The temperature-cost conversion is as follows.
The cost required to change the temperature by ° C. was calculated and normalized to 0 ° C. = 0 yen. Humidity-cost conversion is obtained by calculating the cost required for a unit humidity change and normalizing it to 0% = 0 yen.

Next, the position of the target point on the PMV curve that is closest to the current value is determined. The change in cost to reach the target point from the current value is c'-a in temperature and d'-a in humidity. On the other hand, in the conventional air conditioning control, the control is performed aiming at the point c in FIG.

The comparison between the two is as follows. Conventional air conditioning control: cost 412 yen (corresponding to ca) Air conditioning control of this embodiment: cost 62 yen (corresponding to c'-a) Cost 50 yen (corresponding to d'-a) Total cost 112 yen (b Accordingly, the cost that can be reduced is 300 yen, and the reduction rate is 72.8% as compared with the related art.

(Conversion into Variables Corresponding to Mode in Environment Mode) Next, an example of operation in the environment mode will be described. In this mode, the mode corresponding variables, CO ₂ emissions can be used. FIG. 11 shows the results of converting the initial values of temperature and humidity into CO ₂ emissions. Thereby, the PMV curve and the current value in this mode-corresponding variable (that is, the coordinate system) can be obtained. The conversion of temperature-CO ₂ emission is as follows.
The amount of discharge required to change the temperature by ° C. was calculated and normalized to 0 ° C. = 0 kg. The conversion of the humidity-CO ₂ emission amount was obtained by calculating the emission amount required for a change in the humidity of 10% and normalized to 0% = 0 yen. In the present embodiment, the conversion between the initial variables such as temperature and humidity and the mode corresponding variables is based on empirical rules based on hypothetical numerical values. In practice, it is desirable to perform the conversion in accordance with the characteristics of the space to be air-conditioned.

Next, the position of the target point on the PMV curve that is closest to the current value is determined. The amount of change in CO ₂ emission to reach the target point from the current value is
C'-a at temperature and d'-a at humidity.
On the other hand, in the conventional air conditioning control, in FIG.
Control will be performed aiming at the point.

The comparison between the two is as follows. Conventional air-conditioning control: CO ₂ (corresponding to c-a) emissions 2.06kg air conditioning control of this embodiment: CO ₂ emissions 0.31kg
(C'-a to the corresponding) CO ₂ emissions 0.25 kg (d'-a to the corresponding) (corresponding to the b-a) total CO ₂ emissions 0.56kg Therefore, reductions, 1.50 kg, and the conventional Is 72.8%.

(Control Method in Cooling) Next, a control method in the cooling in summer in the above embodiment will be described. In this method, the metabolic rate and the amount of clothing (CLO
As for (value), a numerical value corresponding to the work content is stored in the storage device in advance, and the user selects one of the stored settings. In addition, the average radiant temperature is set as such since it has little effect even if treated as a constant. However, as will be described later, in cooling, since the PMV value greatly fluctuates due to the airflow, the air volume is also a variable
Variable). FIG. 13 shows an outline of a control method during cooling.

The current environment in the air-conditioning target area was assumed as follows. Temperature: 27.7 ° C. Humidity: 46.5% RH Air volume: 0.00 m / sec PMV value: +1.24

As in the case of the heating, first, as shown in FIG. 14, the PMV curve and the current value of the space to be air-conditioned are acquired using the temperature and the humidity as initial variables.

The PMV curve shows a metabolic rate of 58 (W / m ² ),
Clothing amount 0.155 (m ² ° C / W), wind speed 0.05 (m /
It is a curve of PMV = 0.5 assuming s).
The reason why PMV = 0.5 is that this PMV value can be used as a boundary value between pleasant and unpleasant during cooling in summer. Therefore, the left side in the figure is a cold or cool area and the right side is a hot or warm area across the boundary indicated by the PMV curve. In summer cooling, when the vehicle crosses the PMV curve from the hot area on the right side, it enters a cool area, that is, a comfortable area.

The current value measured by the measuring unit 20 is shown in the upper right of FIG. As shown in FIG. 14, the current value of PMV is +1.24, which is in the discomfort area.

(Conversion to a Variable Corresponding to a Mode in the Energy-Saving Mode) Next, an initial variable is converted to a variable corresponding to a mode. In the following example, an energy saving mode is assumed as the mode. FIG. 15 shows the result of converting the initial variables, temperature and humidity, into energy. Thereby, the PMV curve and the current value in this mode-corresponding variable (that is, the coordinate system) can be obtained. The conversion of the temperature and the energy and the conversion of the humidity and the energy are the same as in the case of the heating, so that the description is omitted.

Next, the position of the target point on the PMV curve that is closest to the current value is determined. In FIG. 15, the current value is indicated by a symbol a and the target point is indicated by a symbol b1.
Then, the amount of change in energy to reach the target point from the current value is a-c1 in temperature and a-c1 in humidity.
It turns out that it is d1.

Here, during cooling, the above-mentioned steps are performed again after changing the air volume. As a premise, in this embodiment, the upper limit of the air volume that can be given to the air-conditioned space by the air conditioner 3 is 0.25 m / sec, and the air volume fluctuation width is 0.10 m / sec.
It is ticking. The reason why the air volume fluctuation width is discrete is to take into account the simplicity of the configuration of the control device.

First, the air volume is increased by 0.10 m / sec to 0.15 m / sec. Then, the same steps as described above are performed. Then, as shown in FIG.
The target point b2 can be obtained. As the current value a, the same value as described above may be used. As a result, the amount of change in energy from the current value to the target point is a-c2 in temperature and a-d2 in humidity.

Here, it should be noted that the change in the air volume and the change in the PMV value do not change proportionally. This is clear from FIG. This figure shows a PMV curve as a result of changing the air volume at the same width.

Then, the air volume was further increased to 0.10 m / sec.
Increase to 0.25 m / sec. As a result, the amount of change in energy from the current value to the target point b3 is a-c3 in temperature and a-d3 in humidity.

The PMV curves under each air volume condition are not parallel. Schematically, it is as shown in FIG.

Then, the required energy Wn under each air volume condition is as follows. Here, W (X) is a function indicating the energy required for the fluctuation value X. Air volume 0.05: W1 = W (a-c1) + W (ad
1) Air volume 0.15: W2 = W (a−c2) + W (ad)
2) + W (b1-b2) Air volume 0.25: W3 = W (ac3) + W (ad)
3) + W (b1−b3) Next, W1 to W3 are compared, and the minimum condition is selected.

Here, actually, in a normal air volume range,
In general, the energy W (b1-bn) for the air volume fluctuation is smaller than the energy W (a-cn) required for the temperature fluctuation and the energy W (a-dn) for the humidity reduction.
Therefore, Wn with the largest n value, that is, the case with the largest air volume, is a pattern that can create a comfortable lower limit with the smallest energy. Therefore, also in the present embodiment, W
It is also possible to adopt a configuration in which the case of W3 is immediately treated as the minimum energy without n-by-n comparison. Further, for example, since the case where the air volume is the largest generally has the smallest energy, instead of obtaining Wn as described above,
From the beginning, the target value (b
3) may be obtained, and the air-conditioning equipment may be controlled accordingly.

After the optimum point bn (b3 in the above example) of the optimal air-conditioning operation has been grasped in this manner,
The temperature fluctuation range and the humidity fluctuation range are calculated, the operation method of the air conditioner is derived based on the temperature change range, and the command is sent to the air conditioner 3. Of course, in this case, a command for air volume fluctuation is also sent to the air conditioner 3.

In the cooling mode, the control in the cost reduction mode or the environmental mode can be performed as in the heating mode.

In the above embodiment, the temperature and the humidity are set as the initial variables, but the initial variables are not limited to these. For example,
Temperature and air volume can be used as initial variables, and if there is a sensor that can efficiently acquire other variables, those variables can also be used.

The description of the above embodiment and examples is merely an example, and does not show a configuration essential to the present invention. The configuration of each part is not limited to the above as long as the purpose of the present invention can be achieved.

[0053]

According to the present invention, a control method or control apparatus for an air-conditioning device capable of finely controlling a control target such as energy, cost or environmental load in accordance with the purpose of use and providing comfort. Can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of the present invention.

FIG. 2 is a table showing an example of set values relating to metabolic rate.

FIG. 3 is a table showing an example of set values regarding a clothing amount.

FIG. 4 is a flowchart showing an outline of a control method during heating.

FIG. 5 is a graph showing a PMV curve and a current value.

FIG. 6 is a graph in the energy saving mode,
It shows an MV curve and a current value.

FIG. 7 is a graph in an energy saving mode, wherein P
It shows an MV curve and a current value.

FIG. 8 is an explanatory diagram showing a variation amount from a current value to a target point on a PMV curve.

FIG. 9 is a graph in a cost reduction mode,
It shows an MV curve and a current value.

FIG. 10 is a graph in a cost reduction mode,
It shows a PMV curve and a current value.

FIG. 11 is a graph in an environmental mode, showing PMV;
It shows the curve and the current value.

FIG. 12 is a graph in an environmental mode, showing PMV;
It shows the curve and the current value.

FIG. 13 is a flowchart showing an outline of a control method during cooling.

FIG. 14 is a graph showing a PMV curve and a current value.

FIG. 15 is a diagram showing a relationship between a present value and PM in an energy saving mode
FIG. 9 is an explanatory diagram showing a variation amount up to a target point on a V curve.

FIG. 16 is an explanatory diagram corresponding to FIG. 15 when the air volume is increased.

FIG. 17 is an explanatory diagram corresponding to FIG. 15 when the air volume is further increased.

FIG. 18 is an explanatory diagram showing a change in a PMV curve when the air volume is increased.

FIG. 19 is a graph showing a PMV-PPD correlation diagram.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 control device 2 sensor 3 air conditioner 10 control unit 20 measuring unit 30 learning unit 40 communication unit

Claims (9)

[Claims] 1. A method for controlling an air conditioner, comprising the following steps. (A) With the temperature and humidity as initial variables, a PMV curve,
A step of obtaining the current value of the space to be air-conditioned; (b) converting the initial variable into a mode-compatible variable; and obtaining the PMV curve and the current value of the mode-dependent variable; (c) Determining the position of a target point on the PMV curve and close to the current value; (d) calculating the change in temperature and humidity from the current value to the target point, respectively; (E) issuing a command to the air conditioner to change the temperature and the humidity in accordance with the amount of change between the temperature and the humidity. 2. A method for controlling an air conditioner, comprising the following steps. (A) With the temperature and humidity as initial variables, a PMV curve,
A step of obtaining the current value of the space to be air-conditioned; (b) converting the initial variable into a mode-compatible variable; and obtaining the PMV curve and the current value of the mode-dependent variable; (c) Determining the position of the target point on the PMV curve and close to the current value; (d) Next, assuming that the air volume in the space to be air-conditioned changes, P
Obtain the MV curve and repeat steps (b) and (c)
Performing a step of obtaining the positions of a plurality of target points, (e) obtaining a change amount converted by the mode corresponding variable to reach each target point from a current value;
(F) Next, a step of obtaining a target point at which the amount of change becomes minimum; (g) Next, to control the temperature, humidity, and air flow so as to reach the minimum target point from the current value. Sending the command to the air conditioner. 3. A method for controlling an air conditioner, comprising the following steps. (A) Using temperature and humidity as initial variables, P at the maximum air flow possible in the air conditioner
Obtaining an MV curve and a current value of the air-conditioned space; (b) converting the initial variable into a mode-corresponding variable, and acquiring the PMV curve and the current value in the mode-corresponding variable; (C) obtaining a position of a target point on the PMV curve at the maximum air volume and close to the current value; (d)
Then, sending a command for controlling the temperature, humidity, and air volume to the air conditioner so as to reach the target point from the current value. 4. A method for controlling an air conditioner, comprising the following steps. (A) obtaining a PMV curve and a current value of a space to be air-conditioned using a first variable and a second variable controlled by the air-conditioning device as initial variables; Converting the variable into a variable and acquiring the PMV curve and the current value in the mode-corresponding variable. (C) Next, the position of the target point on the PMV curve and close to the current value is determined. (D) obtaining the current value from the current value to the target point;
Calculating a change amount in each of the first variable and the second variable; and (e) changing the first variable and the second variable in accordance with the change amounts of the first variable and the second variable.
Issuing a command to the air conditioner. 5. A method for controlling an air conditioner, comprising the following steps. (A) obtaining a PMV curve and a current value of a space to be air-conditioned using a first variable and a second variable controlled by the air-conditioning device as initial variables; Converting the variable into a variable and acquiring the PMV curve and the current value in the mode-corresponding variable. (C) Next, the position of the target point on the PMV curve and close to the current value is determined. (D) obtaining a PMV curve for the initial variable, assuming that the third variable of the space to be air-conditioned has changed, and performing steps (b) and (c) again;
Thus, a step of determining the positions of the plurality of target points,
(E) a step of obtaining a change amount converted by the mode-corresponding variable to reach each target point from the current value; (f) a step of obtaining a target point at which the change amount is minimum; (g) Then, sending a command for controlling the first to third variables to the air conditioner so as to reach the minimum target point from the current value. 6. The method according to claim 1, wherein the mode corresponding variable is one of energy, cost, and environmental load. 7. A control device for controlling an air conditioner, comprising a control unit and a measuring unit, wherein the measuring unit measures temperature and humidity in a space to be air-conditioned.
The control unit calculates a control amount in which a change amount from a current value to a target point in the state converted by the mode corresponding variable is substantially minimum, and controls the air conditioner based on the control amount. Air conditioner control device. 8. The control device for an air-conditioning device according to claim 7, wherein said measurement unit further measures an air volume in a space to be air-conditioned. 9. A method for controlling an air conditioner, comprising the following steps. (A) With the temperature and humidity as initial variables, a PMV curve,
A step of obtaining the current value of the space to be air-conditioned; (b) converting the initial variable into a mode-compatible variable; and obtaining the PMV curve and the current value of the mode-dependent variable; (c) Determining the position of a target point on the PMV curve that is close to the current value; and (d) changing the temperature and humidity to approach the target value. Issuing a command to