JP2015014391A - Air conditioning control system and air conditioning control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning control system and an air conditioning control method capable of providing a comfortable environment even to a user wearing clothes covering a large part of a body.SOLUTION: An air conditioning system according to an embodiment including an air conditioner; a variable air volume unit; and an air conditioning controller, comprises a supply-air-temperature control unit; and an air volume control unit. The supply-air-temperature control unit calculates an opening of the variable air volume unit based on a deviation between a temperature measured value and a temperature set value of a control target area, and increases a supply-air-temperature set value of the air conditioner if the opening is equal to or smaller than an opening threshold. The air volume control unit increases an opening set value of the variable air volume unit based on the deviation between the temperature measured value and the temperature set value in the control target area if the supply-air-temperature set value rises.

Description

  Embodiments described herein relate generally to an air conditioning control system and an air conditioning control method.

  Conventionally, an air conditioner is provided with a temperature sensor that detects a room temperature, and supplies air to the room based on a deviation between a measured indoor temperature value detected via the temperature sensor and a set temperature value of the room temperature. A method of adjusting the temperature of the cooling air (duct supply air temperature) and the air volume thereof is used. The mechanism of the variable air volume unit that adjusts the air volume is referred to as a VAV (Variable Air Volume) unit (hereinafter also simply referred to as “VAV”), and air holes are formed according to a signal from a predetermined control device (air conditioning control device). It is possible to change the “opening degree” indicating the degree of opening / closing of. By changing the opening, the air volume flowing through the holes is adjusted.

According to a general control algorithm of a conventional air conditioner, the air conditioning control device sets a unique duct air supply temperature according to the user's indoor temperature set value TS. The duct supply air temperature is adjusted by controlling the flow rate of the refrigerant (cold water) in the air conditioner main body with a predetermined refrigerant valve (cold water valve). When the deviation between the room temperature measurement value TR and the room temperature set value TS is large, the air conditioning control device controls to increase the air volume by setting the VAV opening large, and as the deviation decreases, Control to gradually reduce the opening.
By doing in this way, the air-conditioning control is finally performed so that the indoor temperature measurement value TR finally stabilizes substantially coincident with the indoor temperature setting value TS (see, for example, Patent Document 1).

JP 2001-248875 A

  Incidentally, in recent years, air conditioners have been used in various countries and regions around the world. Here, depending on the region where the air conditioner is used, there may be a case where the air conditioning control as described above cannot provide a comfortable environment to the user. For example, when a user wears clothes that cover the entire body, heat (body temperature) accumulates because air convection hardly occurs in the vicinity of the body, and the indoor temperature measurement value TR is simply reduced to the indoor temperature setting value TS. There was a problem that it was not possible to provide a comfortable environment simply by not allowing the user to experience “coolness”.

  The problem to be solved by the present invention is to provide an air conditioning control system and an air conditioning control method that provide a comfortable environment.

  The air conditioning control system of the embodiment is an air conditioning control system including an air conditioner, a variable air volume unit, and an air conditioning control device, and includes an air supply temperature control unit and an air volume control unit. The supply air temperature control unit calculates the opening of the variable air volume unit based on the deviation between the temperature measurement value and the temperature set value of the control target area, and when the opening is equal to or less than a predetermined opening threshold, Increase the supply air temperature setting. When the supply air temperature setting value increases, the air volume control unit increases the opening setting value of the variable air volume unit based on the deviation between the temperature measurement value and the temperature setting value of the control target area.

  The air conditioning control method of the embodiment is an air conditioning control method of an air conditioning control system having an air conditioner, a variable air volume unit, and an air conditioning control device, and is based on a deviation between a temperature measurement value and a temperature set value of a control target area. The opening is calculated, and when the opening is equal to or less than a predetermined opening threshold, the supply temperature set value of the air conditioner is increased. Further, when the supply air temperature setting value increases, the opening setting value of the variable air volume unit is increased based on the deviation between the temperature measurement value and the temperature setting value of the control target area.

The figure which shows the function structure of the air-conditioning control system of 1st Embodiment. The figure which shows the function structure of the air-conditioning control apparatus of 1st Embodiment. The figure explaining operation | movement of the air-conditioning control apparatus of 1st Embodiment. The figure which shows the processing flow of the air-conditioning control apparatus of 1st Embodiment. The figure which shows the function structure of the air-conditioning control apparatus of 2nd Embodiment.

<First Embodiment>
Hereinafter, an air conditioning control system according to a first embodiment will be described with reference to the drawings.
FIG. 1 is a diagram showing a functional configuration of an air conditioning control system according to the embodiment. In this figure, reference numeral 1 denotes an air conditioning control system.
As shown in FIG. 1, the air conditioning control system 1 includes an air conditioning control device 10, an air conditioner main body 11, a variable air volume unit 12 (hereinafter simply referred to as VAV 12), a duct air supply temperature sensor 13, an indoor temperature sensor 14, A refrigerant valve 15 is provided. Furthermore, the air conditioner body 11 includes a cooling coil 110 and a blower 111.

The air conditioning control system 1 according to the present embodiment includes a room temperature set value TS input by a user via an operation receiving unit (for example, a remote controller, not shown) and a room temperature input via a room temperature sensor 14. The indoor temperature measurement value TR indicating the temperature of the air is compared, and the indoor air temperature is set while adjusting the duct air supply temperature TD that is the temperature of the air (cooling air) supplied through the duct (cooling air) and the air volume thereof. It is a device that performs air-conditioning control that stabilizes at the value TS.
In the air conditioning control system 1 according to the present embodiment, in the normal operation mode (described later), when the deviation ΔT between the indoor temperature (indoor temperature measurement value TR) and the indoor temperature set value TS is large, the opening V of the VAV 12 Is increased to increase the air volume of the cooling air, and as the deviation ΔT decreases, the opening degree V is gradually decreased to control the air volume. Therefore, finally, when the indoor temperature (indoor temperature measurement value TR) coincides with the indoor temperature set value TS, the opening degree V and the air volume are balanced with the indoor load and stabilized.

Here, when the user of the air conditioning control system 1 is a normal user wearing general clothing, the user should maintain the indoor temperature at the desired indoor temperature set value TS. You can experience “coolness” with this. However, for example, when a user wears clothes that cover the entire body, air convection hardly occurs near the body. I can't feel "".
In general, when targeting a user wearing a costume that covers most of the body, the user can use the cooling air that is blown out rather than the room temperature matching the room temperature setting value TS. The more you feel the coolness, the more you can feel the wind pressure. In other words, for a user wearing a costume that covers most of the body, not only is the control performed so that the room temperature measurement value TR matches the room temperature set value TS, but the air volume is increased as appropriate. Thus, it is possible to provide a more comfortable environment by performing control that allows the user to experience a certain level of wind pressure. Therefore, the air conditioning control system 1 according to the present embodiment performs control to set the air volume so that the user can feel the wind pressure in the air volume increasing mode described later.

Hereinafter, each functional configuration of the air conditioning control system 1 will be described.
The air conditioning control device 10 has a function of adjusting the temperature of the cooling air (duct supply temperature TD) by controlling the refrigerant valve 15. Further, the air conditioning control device 10 obtains an appropriate opening degree V [%] of the VAV 12 according to the deviation between the indoor temperature set value TS and the indoor temperature measurement value TR input via the indoor temperature sensor 14, and opens the opening. By controlling to the degree V, it has a function of adjusting the air volume of the cooling air sent from the air outlet of the air conditioning control system 1. The air conditioning control device 10 controls the temperature of the room while controlling the temperature of the cooling air (duct air supply temperature TD) sent from the VAV 12 to the room through the duct of the air conditioning control system 1 and the air volume. Control to adjust to a desired set temperature is performed. The detailed functional configuration of the air conditioning control device 10 will be described later.

  The air conditioner main body 11 is a main functional unit for realizing air conditioning control by the air conditioning control system 1, and includes a cooling coil 110 that is a mechanism for cooling air, and air cooled by the cooling coil 110. A blower 111 is provided inside for delivery to the room. The degree of cooling of the air in contact with the pipe is changed according to the flow rate of the refrigerant (for example, cold water) flowing through the pipe of the cooling coil 110. The air-conditioning control device 10 adjusts the duct air supply temperature TD to a desired value by controlling the flow rate of the refrigerant and the degree of cooling of the cooling coil 110 via a refrigerant valve 15 described later.

  The VAV 12 is a functional unit that adjusts an “opening degree” V indicating the degree of opening and closing of the air outlet into the room according to opening degree information (opening set value) input from the air conditioning control device 10. The cooling air blown out from the blower 111 is sent into the room through the duct (FIG. 1) and the VAV 12. The VAV 12 has a mechanism (open / close damper) that can change the opening degree V in accordance with opening degree information (opening setting value) input from the air conditioning control device 10, and has a maximum opening degree Vmax [%] to a minimum opening degree. It can be set within the range of Vmin [%]. Note that the air volume of the cooling air flowing through the VAV 12 according to the present embodiment increases and decreases while maintaining a proportional relationship with the opening degree V set in the VAV 12.

  The duct air supply temperature sensor 13 is a temperature sensor that detects the temperature of the air (air supply) that is cooled by the cooling coil 110 and flows through the duct. The room temperature sensor 14 is a temperature sensor that detects the temperature of the room that performs air conditioning control. The refrigerant valve 15 is a valve that adjusts the flow rate of the refrigerant flowing in the pipe of the cooling coil 110. As described above, the refrigerant valve 15 can adjust the flow rate of the refrigerant in accordance with a predetermined control signal from the air conditioning control device 10.

FIG. 2 is a diagram illustrating a functional configuration of the air-conditioning control apparatus according to the first embodiment.
The air conditioning control device 10 shown in FIG. 1 further has the following functional configuration. As shown in FIG. 2, the air conditioning control device 10 includes a supply air temperature control unit 100, an air volume control unit 101, and an operation mode determination unit 102.

The supply air temperature control unit 100 is a functional unit that outputs a control signal for adjusting the flow rate of the refrigerant to the refrigerant valve 15 based on an operation mode determined by an operation mode determination unit 102 described later. Specifically, the supply air temperature control unit 100 sets the duct supply air temperature setting value TDs according to the indoor temperature measurement value TR, and the actual duct supply air temperature TD input via the duct supply air temperature sensor 13. Control is performed so that the (duct air supply temperature measurement value TDr) and the duct air supply temperature setting value TDs coincide with each other.
Further, the supply air temperature control unit 100 according to the present embodiment inputs operation mode information from an operation mode determination unit 102 described later, and performs control according to the operation mode. Specific contents of this processing will be described later.
The supply air temperature control unit 100 is controlled while measuring the duct supply air temperature TD measured in the duct in this embodiment, but is limited to this mode in other embodiments. Instead, the temperature of the air supply to the room may be controlled while measuring the temperature other than the duct (for example, the outlet to the room).

  The air volume control unit 101 outputs to the VAV 12 opening information indicating the opening degree V corresponding to the deviation ΔT between the indoor temperature setting value TS and the indoor temperature measurement value TR input via the indoor temperature sensor 14. Part. When the deviation ΔT between the room temperature measurement value TR and the room temperature set value TS is large, the air volume control unit 101 performs control to increase the air volume by setting the opening degree V high, and the room temperature measurement value TR and the room temperature set value TS As the deviation ΔT from the temperature set value TS becomes smaller, the opening degree V is lowered and the air volume is reduced.

The operation mode determination unit 102 is a functional unit that receives opening information indicating the current opening V of the VAV 12 from the air volume control unit 101 and determines and changes the operation mode to be operated according to the opening V. Specifically, when the operation mode determination unit 102 is operating in the “normal operation mode”, the opening degree V of the VAV 12 indicated by the opening degree information input from the air volume control unit 101 is a predetermined first opening threshold value. When Vth1 or less, a process of switching the operation mode from the “normal operation mode” to the “air volume increase mode” is performed. Here, the first opening degree threshold value Vth1 indicates an opening degree at which the opening degree of the VAV 12 becomes an air volume at which the user cannot feel the wind pressure enough to feel “cool”. The first opening threshold value Vth1 may be, for example, a minimum opening degree Vmin that is a minimum value of the opening degree V that can be set by the VAV12.
Further, when operating in the “air volume increasing mode”, the opening degree V of the VAV 12 is larger than the first opening degree threshold value Vth1, and other opening degree threshold values at which the load of the air conditioning control system 1 for blowing is not excessive. When the second opening threshold value Vth2 (> Vth1) or more is reached, a process of switching the operation mode from the “air volume increase mode” to the “normal operation mode” is performed. Here, the “normal operation mode” and the “air volume increase mode” will be described later. The operation mode determination unit 102 outputs operation mode information indicating the set operation mode to the supply air temperature control unit 100.

FIG. 3 is a diagram for explaining the operation of the air-conditioning control apparatus according to the first embodiment.
In the graph shown in FIG. 3, the vertical axis represents the duct air supply temperature TD, and the horizontal axis represents the opening V of the VAV 12, and represents the transition of the duct air supply temperature TD and the opening V in the control by the air conditioning control device 10. ing.
Hereinafter, the processing of the air conditioning control device 10 in the above-described “normal operation mode” and “air flow increase mode” will be specifically described with reference to FIG. 3.
First, in the normal operation mode, the air conditioning control device 10 performs air conditioner control (referred to as a VAV method) equivalent to the conventional one. Specifically, the air conditioning control device 10 first determines the duct air supply temperature set value TDs as a fixed value, and drives the cooling coil 110 and the blower 111. At this time, the supply air temperature control unit 100 sets the refrigerant so that the duct supply air temperature measurement value TDr input via the duct supply air temperature sensor 13 matches the duct supply air temperature setting value TDs determined as a fixed value. The valve 15 is controlled.

  The air that has been cooled by the cooling coil 110 and reaches the duct supply air temperature setting value TDs is blown into the room through the VAV 12 to gradually cool the room. At this time, the air volume control unit 101 inputs the indoor temperature measurement value TR via the indoor temperature sensor 14 that detects the current temperature in the room, and acquires a deviation ΔT from the indoor temperature setting value TS. Then, as the deviation becomes smaller, the opening degree V of the VAV 12 is gradually reduced to perform control for reducing the air volume. Therefore, according to the control of the air-conditioning control device 10 in the normal operation mode, the relationship between the opening degree V of the VAV 12 and the duct air supply temperature TD follows a locus like a graph A (normal operation mode) shown in FIG.

  Next, as described above, when the opening degree V of the VAV 12 becomes equal to or less than the predetermined first opening threshold value Vth1 in the normal operation mode, the operation mode determination unit 102 changes the “air flow rate increase” from the “normal operation mode”. The operation mode is switched to “mode”. When the supply air temperature control unit 100 detects that the operation mode information input from the operation mode determination unit 102 has switched to the “air flow increase mode”, the supply air temperature control unit 100 performs a process of increasing the duct supply air temperature setting value TDs. As a result, the temperature of the air supplied to the room rises along with this processing, and thus the room temperature rises. However, since the deviation between the room temperature measurement value TR and the room temperature set value TS increases as the room temperature rises, the air volume control unit 101 performs control to increase the opening of the VAV 12 in order to increase the air volume again. That is, the air conditioning control device 10 performs control such that the indoor temperature is maintained in the vicinity of the indoor temperature set value TS as a result while increasing both the duct air supply temperature TD and the opening degree V. Therefore, according to the control of the air conditioning control device 10 in the air volume increasing mode, the relationship between the opening V of the VAV 12 and the duct air supply temperature TD follows a trajectory like a graph B (air volume increasing mode) shown in FIG.

At this time, the supply air temperature controller 100 sets the duct supply air temperature setting value until the opening V of the VAV 12 rises to a wind pressure sensation opening Va with a predetermined air volume that allows the user to experience a predetermined wind pressure. Control to raise TDs is performed. Note that the air conditioning control device 10 may perform a process of further increasing the duct air supply temperature TD in the air supply temperature control unit 100 as long as the room temperature can be maintained with a larger air volume. However, when the opening V of the VAV 12 reaches a predetermined second opening threshold Vth2 (Vth2 is, for example, the maximum value Vmax of the opening V), the operation mode determination unit 102 sets the air volume increase mode to the normal operation mode. Process to switch to. When the supply air temperature control unit 100 detects that the operation mode has been switched to the normal operation mode, the supply air temperature control unit 100 reduces the duct supply air temperature setting value TDs to a value (fixed value) in the normal operation mode, thereby reducing the duct supply air temperature TD. I do.
In this way, in the air volume increasing mode, when an extremely strong air volume is required to maintain the room temperature in the vicinity of the room temperature set value TS, switching to the normal operation mode can A situation where the load becomes excessive can be avoided.

FIG. 4 is a diagram illustrating a processing flow of the air conditioning control device according to the first embodiment.
Next, a processing flow executed by the air conditioning control device 10 according to the present embodiment will be described in detail with reference to FIG.
In the processing flow shown in FIG. 4, the processing flow of the air-conditioning control apparatus 10 from the time when the air-conditioning control system 1 starts operation based on an operation start instruction from the user will be described.
First, the operation mode determination unit 102 sets the operation mode of its own device to the normal operation mode. And the air-conditioning control apparatus 10 starts control in normal operation mode (step S01).
Next, the supply air temperature control unit 100 receives operation mode information indicating the “normal operation mode” from the operation mode determination unit 102, and sets the duct supply air temperature setting value TDs to a predetermined fixed value determined in the normal operation mode. (See step S02, FIG. 3). For example, the duct supply air temperature setting value TDs in the normal operation mode is set to 18 ° C.
The supply air temperature control unit 100 outputs a control signal to the refrigerant valve 15 based on the set duct supply air temperature setting value TDs (= 18 ° C.). The blower 111 blows the air cooled by the cooling coil 110 to the VAV 12. Here, the duct air supply temperature sensor 13 measures the cooled duct air supply temperature TDr blown by the blower 111, and outputs the duct air supply temperature measurement value TDr to the air supply temperature control unit 100. The supply air temperature control unit 100 adjusts the flow rate of the refrigerant through the refrigerant valve 15 while referring to the input duct supply temperature measurement value TDr, and the duct supply air temperature measurement value TDr becomes the duct supply air temperature setting value TDs. (= 18 ° C.) By controlling in this way, the supply air temperature control unit 100 can generate cooling air having a temperature (duct supply air temperature measurement value TDr) of 18 ° C.

Next, the air volume control unit 101 outputs opening information to the VAV 12 while referring to the indoor temperature measurement value TR input via the indoor temperature sensor 14, and performs a process of adjusting the opening of the VAV 12 (step S03). ). Specifically, for example, the air volume control unit 101 controls the opening degree of the VAV 12 so that the deviation ΔT between the indoor temperature setting value TS and the indoor temperature measurement value TR and the opening degree V to be set have a proportional relationship. Then, by repeating this step S03, the air volume control unit 101 increases the opening V and increases the air volume when the deviation ΔT between the indoor temperature setting value TS and the indoor temperature measurement value TR is large. A control is realized in which the room temperature is rapidly lowered and the opening degree V is gradually reduced to reduce the air volume as the deviation ΔT is reduced.
For example, it is assumed that the indoor temperature set value TS is 26 ° C. and the actual room temperature (that is, the indoor temperature measurement value TR acquired by the indoor temperature sensor 14) is 30 ° C. Then, the air volume control unit 101 controls the opening degree V of the VAV 12 so that the cooling air having a temperature of 18 ° C. is blown into the room with an appropriate air volume based on the deviation ΔT (= 30 ° C.−26 ° C. = + 4 ° C.). . As a result of the cooling air being blown into the room, the deviation ΔT also decreases as the indoor temperature measurement value TR decreases to 29 ° C., 28 ° C.,... In response, the opening degree V of the VAV 12 is lowered to perform control for reducing the air volume.

If an instruction to end the operation is received from the user during the control by the air volume control unit 101 (YES in step S04), the air conditioning control device 10 ends the control of the air conditioning control system 1. If an instruction to end the operation from the user has not been received (NO in step S04), the control is continued.
The operation mode determination unit 102 inputs the value of the current opening degree V from the air volume control unit 101, and determines whether or not the opening degree V is equal to or less than a predetermined first opening threshold value Vth1 (step S05). ). Here, when the opening degree V currently exceeds the first opening degree threshold value Vth1 (NO in step S05), the air volume control unit 101 repeats the process of step S03. That is, the operation mode determination unit 102 continues to output operation mode information indicating the normal operation mode to the supply air temperature control unit 100.
The first opening threshold value Vth1 may be, for example, a minimum opening degree Vmin that is a minimum value of the opening degree V that can be set by the VAV12.

Next, while the process of step S03 is repeated, the deviation ΔT between the room temperature set value TS and the room temperature measured value TR becomes small, the opening degree V decreases, and the opening degree V is equal to or less than the first opening degree threshold value Vth1. Will be described (YES in step S05). In this case, the operation mode determination unit 102 performs a process of switching the normal operation mode to the air volume increasing mode (step S06).
As described above, the air conditioning control system 1 immediately switches to the air volume increasing mode when the opening degree V becomes the first opening degree threshold value Vth1 and the user cannot feel the wind pressure. It shifts to the driving mode that you can experience.

When air supply temperature control unit 100 receives information indicating “air flow increase mode” from operation mode determination unit 102, supply air temperature control unit 100 performs a process of increasing duct air supply temperature set value TDs from the set value in the normal operation mode (step S07). ). For example, the supply air temperature control unit 100 increases the duct supply air temperature set value TDs from 18 ° C. to 19 ° C. in step S07. Then, the supply air temperature control unit 100 controls the flow rate of the refrigerant by the refrigerant valve 15 so that the temperature of the cooling air generated by the cooling coil 110 becomes 19 ° C.
On the other hand, the air volume control unit 101 continues the process of adjusting the opening degree V of the VAV 12 by outputting the opening degree information to the VAV 12 while referring to the indoor temperature measurement value TR input via the room temperature sensor 14 ( Step S08). Here, the process of the air volume control unit 101 in step S08 is substantially the same as the process in the normal operation mode (step S03). However, in the air volume increasing mode, the temperature of the cooling air (duct supply air temperature setting value TDs) is increased from 18 ° C. to 19 ° C. in step S07. As long as the operation is performed with the air volume, the indoor temperature (indoor temperature measurement value TR) gradually increases and the deviation ΔT increases. If it does so, it will result in an air volume increasing by the process of step S08 of the air volume control part 101. FIG.
However, when the air volume of the cooling air sent from the VAV 12 increases, the room temperature starts to decrease again, and the deviation ΔT decreases. That is, at this stage, the air volume control unit 101 adjusts the air volume so that the indoor temperature measurement value TR is stabilized at the set temperature measurement value TD (= 26 ° C.) with the cooling air of 19 ° C. while repeatedly increasing and decreasing the air volume. Do. In this case, since control is performed to keep the room temperature constant with cooling air having a temperature higher than 18 ° C. (19 ° C.), the air volume sent from the VAV 12 is naturally set to the normal operation mode (duct air supply temperature setting value). TDs = 18 ° C.) than when operating.

As long as the opening degree V is not greater than or equal to the second opening degree threshold value Vth2 as determined in step S10 described later, the supply air temperature control unit 100 and the air volume control unit 101 repeat the processes of step S07 and step S08. For example, it is assumed that the supply air temperature control unit 100 further increases the duct supply air temperature setting value TDs from 19 ° C. to 20 ° C. in step S08 at a certain stage. Then, the air volume control unit 101 adjusts the air volume so that the indoor temperature measurement value TR is stabilized at the set temperature measurement value TD (= 26 ° C.) with the cooling air of 20 ° C. while continuously increasing and decreasing the air volume. . In this case, the air volume sent from the VAV 12 further increases.
Thus, in the operation in the air volume increase mode, the supply air temperature control unit 100 sets the duct supply air temperature setting value TDs to a temperature (19 ° C., 20 ° C.,...) Higher than the temperature in the normal operation mode (= 18 ° C.). ..), The air volume control unit 101 gradually increases the air volume of the cooling air in order to keep the room temperature (indoor temperature measurement value TR) constant. As a result, the air volume control unit 101 sets the air volume of the cooling air blown out from the VAV 12 to the wind pressure sensation opening degree Va that allows the user to experience the air pressure.

  Even during operation in the air volume increase mode, if an instruction to end the operation is received from the user (YES in step S09), the air conditioning control device 10 ends the control of the air conditioning control system 1. If the user has not received an instruction to end the operation (NO in step S09), the control is continued. The air conditioning control device 10 starts control again from step S01 (normal operation mode) when receiving an operation start instruction from the user again when the operation is ended in the air volume increasing mode.

Next, the operation mode determination unit 102 inputs the value of the current opening degree V from the air volume control unit 101 and determines whether or not the opening degree V is equal to or greater than a predetermined second opening degree threshold value Vth2 ( Step S10). Here, when the opening degree V is currently lower than the second opening degree threshold value Vth2 (NO in step S10), the supply air temperature control unit 100 and the air volume control unit 101 repeat the processes of steps S07 and S08. . That is, the operation mode determination unit 102 continues to output operation mode information indicating the air volume increase mode to the supply air temperature control unit 100.
Note that the second opening threshold value Vth2 may be, for example, the maximum opening degree Vmax that is the maximum value of the opening degree V that can be set by the VAV12.

Since the duct supply air temperature setting value TDs gradually increases while the processes of Steps S07 and S08 are repeated, the room temperature (indoor temperature measurement) even if the air volume is maximized (opening V = Vmax) at a certain time. The value TR) may not be stabilized at the set temperature measurement value TD (= 26 ° C.).
Therefore, in the air volume increasing mode, when the difference ΔT between the room temperature set value TS and the room temperature measurement value TR is increased and the opening degree V is increased, and the opening degree V is equal to or greater than the second opening degree threshold value Vth2 ( (YES in step S10) will be described. In this case, the operation mode determination unit 102 performs a process of ending the air volume increasing mode and returning to step S01 to switch to the normal operation mode. When the supply air temperature control unit 100 inputs the operation mode information indicating the normal operation mode from the operation mode determination unit 102, the supply air temperature control unit 100 immediately changes the duct supply air temperature setting value TDs to a fixed value (= 18 ° C.) in the normal operation mode. To do.

  In this way, when the temperature of the cooling air (duct supply air temperature setting value TDs) increases and it becomes difficult to stabilize the indoor temperature at the set temperature measurement value TD, the operation mode determination unit 102 can switch from the air volume increasing mode to the normal operation mode, and the temperature of the cooling air can be immediately decreased. Therefore, it is possible to avoid a situation in which the air volume necessary for maintaining the room temperature in the vicinity of the room temperature set value TS becomes too large and the load for blowing air becomes excessive.

As described above, according to the air conditioning control device 10 according to the present embodiment, the air conditioning control system 1 is in a state in which the opening degree V of the VAV 12 is equal to or less than the predetermined first opening threshold value Vth1, and the user cannot experience a constant wind pressure. In such a case, the operation mode is switched to the air volume increasing mode, the air volume is appropriately increased, and the user feels a certain level of wind pressure. Therefore, a comfortable environment can be provided even for a user wearing a costume covering most of the body.
Further, according to the air conditioning control device 10, the air conditioning control system 1 performs control to increase the temperature of the cooling air (duct supply temperature setting value TDs) in the air volume increasing mode. Therefore, since the cooling load of air in the cooling coil 110 is reduced, the power consumption of the entire air conditioning control system 1 can be reduced.
Moreover, according to the air-conditioning control apparatus 10, the air-conditioning control system 1 becomes difficult when it becomes difficult to maintain the indoor temperature at the temperature desired by the user (the indoor temperature set value TS) in the air volume increasing mode (opening degree). When V reaches the second opening threshold value Vth2, the operation is immediately switched to the normal operation mode. As a result, the temperature of the cooling air (duct supply temperature TD) decreases. Therefore, it is possible to prevent the room temperature from rising in the air volume increasing mode and the user's comfort from being impaired. Further, as described above, it is possible to avoid a situation in which the necessary air volume becomes too large and the load for blowing air becomes excessive.

In addition, the air-conditioning control apparatus 10 which concerns on this embodiment demonstrated above is not limited to the above-mentioned content, For example, it can change as follows.
For example, if the opening degree V is equal to or greater than the second opening degree threshold value Vth2 in the process of step S10 (FIG. 4), the air conditioning control device 10 immediately performs a process of shifting to the normal operation mode (step S01). I am going to do that. In this case, the air supply temperature control unit 100 immediately increases the duct air supply temperature setting value TDs (for example, 20 ° C.) that is increasing in the operation in the air volume increasing mode, immediately after the duct air supply temperature setting value TDs (for example, 18 in the normal operation mode). ° C). However, the supply air temperature control unit 100 according to another embodiment may perform a process of gradually decreasing the duct supply air temperature setting value TDs when shifting to the normal operation mode.
By doing in this way, the rapid load fluctuation of the cooling coil 110 can be suppressed and the increase in power consumption can be prevented.

In addition, the supply air temperature control unit 100 according to the present embodiment performs a process of gradually increasing the duct supply air temperature setting value TDs in the air volume increase mode (step S07). However, the air supply temperature control unit 100 according to another embodiment is configured so that the current air opening V is maintained at the wind pressure sensation opening degree Va that allows the user to experience the wind pressure. You may have the function to stop the raise of temperature setting value TDs temporarily. In this case, the supply air temperature control unit 100 is configured to directly input opening degree information indicating the opening degree V set by the air volume control unit 101.
In this way, the air conditioning control system 1 does not raise the temperature of the cooling air any further as long as the air volume is such that the user can experience the wind pressure. It is possible to further maintain a state in which comfort is obtained with an air volume that allows the wind pressure to be experienced.

<Second Embodiment>
The air conditioning control system according to the second embodiment will be described below with reference to the drawings.
Note that, among the functional configurations according to the second embodiment, the functional configurations common to the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In addition, the functional configuration of the air conditioning control system 1 according to the present embodiment is the same as the functional configuration of the air conditioning control system 1 according to the first embodiment (FIG. 1), and thus illustration is omitted.

FIG. 5 is a diagram illustrating a functional configuration of the air-conditioning control apparatus according to the second embodiment.
As shown in FIG. 5, the air conditioning control device 10 according to the present embodiment includes a supply air temperature control unit 100, an air volume control unit 101, and an operation mode determination unit 102. Here, the air volume control unit 101 according to the present embodiment further includes an opening degree calculation unit 101a. Hereinafter, each functional configuration will be described.

The supply air temperature control unit 100 is a functional unit that outputs a control signal for adjusting the flow rate of the refrigerant to the refrigerant valve 15 based on the operation mode determined by the operation mode determination unit 102, as in the first embodiment.
Further, the supply air temperature control unit 100 according to the present embodiment outputs duct supply air temperature information indicating the temperature of the cooling air set by itself (duct supply air temperature setting value TDs) to the air volume control unit 101.

As with the first embodiment, the air volume control unit 101 outputs to the VAV 12 opening information indicating the opening V corresponding to the deviation ΔT between the room temperature set value TS and the room temperature measurement value TR. It is. The processing of the air volume control unit 101 in the normal operation mode is the same as that in the first embodiment.
Further, the air volume control unit 101 according to the present embodiment outputs opening degree information indicating the target opening degree Vs obtained based on the calculation process of the opening degree calculating unit 101a in the air volume increasing mode, and the opening degree V of the VAV 12 Is controlled to be the target opening Vs. Details of this control will be described later.

  As in the first embodiment, the operation mode determination unit 102 is a functional unit that receives opening information from the air volume control unit 101 and determines the operation mode to be operated according to the opening V and switches settings. . The operation mode determination unit 102 according to the present embodiment outputs operation mode information indicating the set operation mode to the supply air temperature control unit 100 and the air volume control unit 101.

Next, a specific processing flow of the air conditioning control device 10 according to the present embodiment will be described.
The processing flow of the air conditioning control device 10 according to the present embodiment is the same as that of the first embodiment (FIG. 4). However, the difference is that the control of the opening degree of the VAV 12 in the air volume increasing mode (step S08) is as follows.
First, when switching to the air volume increasing mode in step S06, the supply air temperature control unit 100 performs a process of increasing the duct supply air temperature setting value TDs (step S07). Here, it is assumed that the supply air temperature control unit 100 increases the duct supply air temperature setting value TDs from 18 ° C. to 19 ° C. At this time, the supply air temperature control unit 100 performs control to change the temperature of the cooling air (duct supply air temperature) to 19 ° C., and also shows a newly set duct supply air temperature set value TDs (= 19 ° C.). Supply air temperature information is output to the air volume control unit 101.

Here, when the air volume control unit 101 according to the present embodiment changes to an air volume that allows the user to experience a predetermined wind pressure in step S08, the amount of heat supplied to the room is constant before and after the transition to the air volume increasing mode. The target opening degree Vs is calculated as follows.
Specifically, the air volume control unit 101 sets the VAV 12 based on the duct air supply temperature setting value TDs indicated by the input duct air supply temperature information and the indoor temperature measurement value TR input from the indoor temperature sensor 14. A process for calculating the power opening degree V is performed.
Specifically, the opening calculation unit 101a performs the calculation shown in Expression (1).

However, in Expression (1), “Vs” is the target opening degree Vs, “TR” is the indoor temperature measurement value TR, and “Vth1” is the first opening threshold value Vth1. “TDs1” is a duct air supply temperature setting value TDs set as a fixed value in the normal operation mode, and “TDs2” is a duct air supply temperature setting value TDs set at each time point in the air volume increasing mode. is there.
As described above, the air volume control unit 101 changes the duct air supply temperature before changing the duct air supply temperature with respect to the deviation between the duct air supply temperature (= TDs2) and the indoor temperature measurement value TR after the change of the duct air supply temperature (in the air volume increasing mode). Multiply the ratio of the deviation between the duct air supply temperature (= TDs1) and the room temperature measurement value TR (in the normal operation mode) by the opening (first opening threshold Vth1) before the change of the duct air supply temperature. A target opening Vs is calculated.

Here, in the normal operation mode, when the opening degree V of the VAV 12 is the first opening degree threshold value Vth1, and the room temperature (room temperature measurement value TR) is kept at the room temperature setting value TS (= 26 ° C.). think of. Further, it is assumed that the duct supply temperature set value TDs at this time is 18 ° C. At this stage, the air conditioning control system 1 can maintain the indoor temperature at 26 ° C. by blowing 18 ° C. cooling air into the room at an air volume (air volume A 1) corresponding to the first opening threshold Vth 1. it is conceivable that.
In such a situation, it is assumed that the operation mode determination unit 102 performs the switching process to the air volume increase mode, and the supply air temperature control unit 100 increases the duct supply air temperature setting value TDs from 18 ° C. to 19 ° C. In this case, in order to keep the room temperature at 26 ° C., the amount of heat supplied to the room in the normal operation mode and the air amount increase mode in which the cooling air is increased to 19 ° C. are supplied to the room thereafter. The amount of heat to be generated must match.

  Here, the amount of heat supplied to the room by the air conditioning control system 1 is the temperature difference between the room temperature (room temperature measurement value TR) and the temperature of the cooling air (duct supply temperature setting value TDs), and the air volume of the cooling air. The value depends on the product of. In other words, in the above example, in the normal operation mode, the temperature difference between the room temperature (26 ° C.) and the cooling air temperature (18 ° C.) is 8 ° C. When the temperature becomes 19 ° C., the temperature difference between the indoor temperature (26 ° C.) and the cooling air temperature (19 ° C.) becomes 7 ° C. and decreases. However, if the air volume control unit 101 blows a larger air volume A2 (> A1) in accordance with the decrease in the temperature difference, the amount of heat supplied to the room becomes constant, and the room temperature of 26 ° C. can be maintained.

Therefore, the air volume control unit 101 does not control the opening degree V of the VAV 12 based on the deviation ΔT between the indoor temperature measurement value TR and the indoor temperature setting value TS in step S08, but is calculated by the equation (1). Control for applying the target opening Vs (opening V corresponding to the air volume A2) to the VAV 12 is performed.
By doing in this way, the air-conditioning control apparatus 10 can keep a room temperature constant, increasing an air volume.

  As described above, according to the air-conditioning control device 10 according to the present embodiment, the air-conditioning control system 1 is appropriately used when the opening degree V of the VAV 12 becomes equal to or less than the predetermined first opening threshold value Vth1, as in the first embodiment. The air volume can be increased to allow the user to experience a certain level of wind pressure. Therefore, a comfortable environment can be provided even for a user wearing a costume covering most of the body.

In the case of the first embodiment, after the supply air temperature control unit 100 increases the duct supply air temperature setting value TDs in the air flow increase mode, the air flow control unit 101 sets the indoor temperature (indoor temperature measurement value TR). Since control is performed to increase the air volume with the actual increase, there is a time lag between the transition to the air volume increasing mode and the actual increase of the air volume.
On the other hand, in the case of the second embodiment, when the supply air temperature control unit 100 increases the duct supply air temperature setting value TDs in the air volume increase mode, the opening degree calculation unit 101a displays the duct supply air temperature setting value TDs. The target opening Vs that should keep the room temperature constant is calculated based on the above, and the obtained target opening Vs is immediately applied to the opening V of the VAV 12. Therefore, the supply air temperature control unit 100 can rapidly increase the duct supply air temperature setting value TDs until the target opening Vs calculated by the opening calculation unit 101a reaches the wind pressure sensing opening Va. . As a result, the air-conditioning control system 1 can increase the air volume more quickly to a level that allows the user to experience a certain or higher wind pressure.

  In addition, the air-conditioning control apparatus 10 which concerns on this embodiment demonstrated above is not limited to the above-mentioned content, For example, it can change as follows.

  For example, the opening calculation unit 101a of the air volume control unit 101 according to the present embodiment uses a method of calculating the target opening Vs such that the amount of heat supplied to the room is constant based on the equation (1). . However, the opening degree calculation unit 101a according to another embodiment may calculate the target opening degree Vs based on another index different from the amount of heat. Specifically, for example, the air volume control unit 101 may calculate the target opening degree Vs based on a “PMV value” (also referred to as a “predicted mean vote”) obtained by quantifying human thermal sensation. Good. As a known technique, the PMV value can be calculated from a known arithmetic expression including six values of room temperature, air volume, clothing volume, activity level, radiation temperature, and humidity as parameters. The opening degree calculation unit 101a according to the present embodiment stores in advance an arithmetic expression for calculating the PMV value. Then, the opening degree calculation unit 101a, in the air volume increasing mode, responds to the increase in the duct air supply temperature setting value TDs and the target opening degree Vs so that the PMV value falls within a predetermined range (a range in which people feel comfort). May be calculated.

  Further, the air volume control unit 101 according to the present embodiment performs control to apply the opening degree V based on the calculation result of the opening degree calculation unit 101a exclusively to the VAV 12 in the air volume increasing mode. However, in another embodiment, the air volume control unit 101 controls the opening V of the VAV 12 based on both the calculation result of the opening calculating unit 101a and the indoor temperature measurement value TR input via the indoor temperature sensor 14. May be. More specifically, for example, the air volume control unit 101 adjusts the opening degree V (air volume) based on the calculation result of the opening degree calculation unit 101a. As a result, the indoor temperature is equal to or greater than a predetermined threshold value from the indoor temperature set value TS. When there is a divergence, this may be detected and the control may be switched to the control of the opening degree V (air volume) based on the indoor temperature measurement value TR.

  According to the air conditioning control device of at least one embodiment described above, by providing the above-described air supply temperature control unit and variable air volume unit, the opening degree of the VAV becomes equal to or less than a predetermined opening degree threshold, and the user When the air pressure is in a state where it is impossible to experience a constant wind pressure, the air volume is appropriately increased, and control is performed so that the user can experience a wind pressure above a certain level. Therefore, a comfortable environment can be provided even for a user wearing a costume covering most of the body.

  In addition, the aspect which has a computer system inside may be sufficient as the above-mentioned air-conditioning control apparatus 10. FIG. Each process of the air conditioning control device 10 described above is stored in a computer-readable recording medium in the form of a program, and the above-described processing is performed by the computer reading and executing this program. Here, the computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM (Compact Disk Read Only Memory), a semiconductor memory, or the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.

Moreover, the above-mentioned air-conditioning control apparatus 10 may be provided with the function to control the several air conditioning control system 1 with which it was provided for each of the single large room or the several partitioned room simultaneously. In this case, the air conditioning control system 1 may not use one room as the control target area, but may set one area in the large room that is not partitioned by a wall or the like as the control target area.
In this case, the air-conditioning control device 10 may be provided outside the plurality of air-conditioning control systems 1 and perform the above-described control for each air-conditioning control system 1 via wired or wireless communication means.

  In addition, the air conditioning control system 1 may be configured such that the above-described functional units are distributed and provided in a plurality of devices connected via a network. On the other hand, even when all the functional units are provided in a single device, the device is included in the category of the air conditioning control system according to each embodiment.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other portable devices, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof, as long as they are included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 1 ... Air-conditioning control system 10 ... Air-conditioning control apparatus 100 ... Supply air temperature control part 101 ... Air volume control part 101a ... Opening degree calculation part 102 ... Operation mode determination part 11 ... Air conditioner body 110 ... cooling coil 111 ... blower 12 ... variable air volume (VAV)
13 ... Duct air supply temperature sensor 14 ... Indoor temperature sensor 15 ... Refrigerant valve

Claims (6)

An air conditioner for adjusting the temperature of the air supplied to the controlled area based on the supply air temperature setting value;
A variable air volume unit for adjusting the air volume of air supplied to the controlled area based on the opening setting value;
In an air conditioning control system having an air conditioning control device that performs air conditioning control based on a deviation between a temperature measurement value and a temperature set value in a control target area,
When the opening of the variable air volume unit is calculated based on the deviation between the temperature measurement value and the temperature setting value of the control target area, and the opening is equal to or less than a predetermined opening threshold value, the supply air temperature setting value of the air conditioner A supply air temperature control unit for raising
When the supply air temperature setting value rises, based on the deviation between the temperature measurement value and the temperature setting value of the control target area, an air volume control unit that increases the opening setting value of the variable air volume unit;
An air conditioning control system. The air volume control unit
The air conditioning control system according to claim 1, wherein a target opening degree at which the amount of heat supplied to the room is constant is calculated, and an opening setting value of the variable air volume unit is changed to the calculated target opening degree. The air volume control unit
Deviation between the supply air temperature setting value and the indoor temperature measurement value before the change of the supply air temperature setting value with respect to the deviation between the supply air temperature setting value and the room temperature measurement value after the change of the supply air temperature setting value The target opening is calculated by multiplying the ratio by the opening setting value before the change of the supply air temperature setting value, and the opening setting value of the variable air volume unit is changed to the calculated target opening. The air conditioning control system according to claim 2. The air volume control unit
The air conditioning control according to claim 1, wherein the opening setting value is changed so that the comfort index falls within a predetermined range based on an arithmetic expression for calculating a comfort index including at least the room temperature and the air volume as parameters. system. The supply air temperature control unit
When the opening of the variable air volume unit is calculated based on the deviation between the temperature measurement value and the temperature setting value of the control target area, and the opening is equal to or greater than a predetermined opening threshold, the supply air temperature setting value of the air conditioner The air conditioning control system according to any one of claims 1 to 4, wherein the air conditioning is reduced. An air conditioner for adjusting the temperature of the air supplied to the controlled area based on the supply air temperature setting value;
A variable air volume unit for adjusting the air volume of air supplied to the controlled area based on the opening setting value;
In an air conditioning control method of an air conditioning control system having an air conditioning control device that performs air conditioning control based on a deviation between a temperature measurement value and a temperature set value of a control target area,
When the opening of the variable air volume unit is calculated based on the deviation between the temperature measurement value and the temperature setting value of the control target area, and the opening is equal to or less than a predetermined opening threshold value, the supply air temperature setting value of the air conditioner Step to raise,
Increasing the opening setting value of the variable air volume unit based on the deviation between the temperature measurement value and the temperature setting value of the control target area when the supply air temperature setting value is increased;
An air conditioning control method comprising:

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