JP2017026161A - Air conditioning control device, air conditioning control system, air conditioning control method and air conditioning control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning control device, an air conditioning control system, an air conditioning control method and an air conditioning control program which improve comfort of an air conditioned space.SOLUTION: An air conditioning control device includes an area state information acquisition part and a correction part. The area state information acquisition part acquires area state information showing the state in a first area of areas formed by partitioning a prescribed space into a plurality of areas. The correction part corrects a first control target on the basis of the area state information acquired by the area state information acquisition part, a first control target given to a first air conditioner having the first area as a control target, and a second control target given to a second air conditioner having a second area adjacent to the first area as a control target.SELECTED DRAWING: Figure 1

Description

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

  Conventionally, a multi-type air conditioner in which a plurality of indoor units are connected to one outdoor unit is known. In this multi-type air conditioner, the control means controls the air volume taps and the wind directions of a plurality of indoor units, thereby making the temperature distribution in the air-conditioned space uniform and improving the comfort of the entire air-conditioned space. However, in the conventional apparatus, when even one indoor unit is stopped, it is impossible to control the air conditioning of the air-conditioned space shared by the stopped indoor unit, and it is not possible to improve the comfort of the air-conditioned space was there.

JP 7-27395 A

  The problem to be solved by the present invention is to provide an air conditioning control device, an air conditioning control system, an air conditioning control method, and an air conditioning control program capable of improving the comfort of an air conditioned space.

  The air conditioning control device of the embodiment includes an area state information acquisition unit and a correction unit. The region state information acquisition unit acquires region state information indicating a state in the first region among regions obtained by dividing the predetermined space into a plurality of regions. The correction unit includes the region state information acquired by the region state information acquisition unit, the first control target given to the first air conditioner that controls the first region, and the first region. The first control target is corrected based on a second control target given to a second air conditioner that controls the adjacent second region.

The block diagram of the air-conditioning control system 1 containing the air-conditioning control apparatus 20 of 1st Embodiment. The figure for demonstrating the function structure centering on the air-conditioning control apparatus 20. FIG. The flowchart for demonstrating the flow of the process which the air-conditioning control apparatus 20 performs. The conceptual diagram of the process performed by the air-conditioning control apparatus 20. FIG. The figure which shows the comparison result which compared the control response by the distributed cooperation control by the conventional control (PID control) and the air-conditioning control apparatus 20 of this embodiment when the air conditioner of the air-conditioning area 5 fails. The flowchart for demonstrating the flow of the process which the air-conditioning control apparatus 20 of 2nd Embodiment performs. The conceptual diagram of the process performed by the air-conditioning control apparatus 20 of 2nd Embodiment. The conceptual diagram of the process which the air-conditioning control apparatus 20 of 3rd Embodiment performs. The figure for demonstrating the structure of 1 A of air-conditioning control systems containing the air-conditioning control apparatus 20 of a modification.

  Hereinafter, an air conditioning control device, an air conditioning control system, an air conditioning control method, and an air conditioning control program according to embodiments will be described with reference to the drawings.

(First embodiment)
Drawing 1 is a figure showing the lineblock diagram of air-conditioning control system 1 containing air-conditioning control device 20 of a 1st embodiment. The air conditioning control system 1 controls the target space 4 so as to maintain an appropriate temperature. The target space 4 is, for example, a building, a store, an office, or the like. The air conditioning control system 1 includes air conditioners 10a to 10f and air conditioning control devices 20a to 20f. The air-conditioning control devices 20a to 20f control the air conditioners with common characters (a to f) among the air conditioners 10a to 10f, respectively. Hereinafter, when the air conditioners 10a to 10f are not distinguished from each other, the air conditioner 10 is referred to.

  The temperature of the target space 4 is controlled by the air conditioners 10a to 10f. The target space 4 is divided into, for example, air conditioning areas from a to f, and the air conditioning areas a to f are controlled by the air conditioner 10 and the air conditioning control device 20 corresponding to the air conditioning areas a to f, respectively. The air conditioner 10 and the air conditioning control device 20 corresponding to the air conditioning areas a to f are the air conditioner 10 and the air conditioning control device 20 to which characters (a to f) common to the air conditioning areas (a to f) are attached. Hereinafter, when air conditioning areas a to f are not distinguished, they are referred to as air conditioning areas.

  For example, a plurality of air conditioners 10 are indoor air conditioners provided at a predetermined interval on the ceiling of the target space 4. The air conditioner 10 is connected to an outdoor air conditioner (not shown) by, for example, a refrigerant pipe. The air conditioner 10 and the outdoor air conditioner are, for example, a heat exchanger (not shown) provided in the air conditioner 10 and a heat exchanger (not shown) provided in the outdoor air conditioner based on the control signal output to the air conditioning control device 20. And perform heat exchange to control the temperature, humidity, and the like of the target space 4. The air conditioner includes an air conditioner 10 and an outdoor air conditioner.

  The air conditioning control device 20 is connected to the air conditioning control device 20 that controls the air conditioner 10 in the adjacent air conditioning area through the communication line 12. The communication line 12 is, for example, a PLC (Power Line Communication). The air conditioner 10 in the adjacent air conditioning area is an air conditioner 10 in the air conditioning area that has a high degree of influence on the target air conditioning area. For example, the air conditioners 10 in the air conditioning area adjacent to the air conditioner 20e are 20b, 20d, and 20f. The air conditioning control device 20 controls the air conditioner 10 corresponding to its own device based on measurement data acquired from the measurement unit 16 to be described later and set setting values. In addition, the air conditioning control device 20 is based on the measurement data acquired from the air conditioning control device 20 in the adjacent air conditioning area or the set value set in the air conditioning control device 20 in the adjacent air conditioning area. To control. The set values are the supply air temperature, the air volume, the wind direction, and the like set in the air conditioner 10 by the air conditioning control device 20. In addition, communication with the air-conditioning control apparatus 20 and the air-conditioning control apparatus 20 which controls the air conditioner 10 of an adjacent air-conditioning area may be performed by radio | wireless communication.

  For example, the air conditioning control device 20e corresponding to the air conditioner 10e acquires measurement data and set values from the air conditioning control devices 20b, 20d, and 20f corresponding to the air conditioners 10b, 10d, and 10f in the adjacent air conditioning area. The temperature of the target space 4 is controlled by controlling the air conditioner 10e based on the measurement data and the set value.

  FIG. 2 is a diagram for explaining a functional configuration centering on the air conditioning control device 20. The air conditioning control device 20 and the measurement unit 16 are connected by, for example, a dedicated line. The measurement unit 16 detects the return air temperature, the supply air temperature, the air volume, the wind direction, the room temperature, and the like in the target space 4 and outputs the detection result to the air conditioning control device 20 as measurement data.

  The air conditioning control device 20 includes an interface unit 21, an input unit 22, a communication unit 24, a storage unit 25, and a calculation unit (correction unit) 26. For example, the calculation unit 26 is a software function unit that functions when a processor such as a CPU (Central Processing Unit) included in the air conditioning control device 20 executes a program or a model formula stored in a program memory. The calculation unit 26 may be a hardware function unit such as an LSI (Large Scale Integration) or an ASIC (Application Specific Integrated Circuit). The storage unit 25 is realized by a readable or writable volatile or nonvolatile storage device such as a RAM (Random Access Memory), a HDD (Hard Disk Drive), a flash memory, or an EEPROM (Electrically Erasable Programmable Read-Only Memory). Is done.

  The interface unit 21 is an interface that communicates with the measurement unit 16 and the air conditioner 10. The interface unit 21 acquires measurement data measured by the measurement unit 16 and outputs the acquired measurement data to the calculation unit 26. Further, the interface unit 21 outputs the calculation result calculated by the calculation unit 26 to the air conditioner 10.

  The input unit 22 receives a setting value input by an operator's operation and a setting for cooling operation or heating operation, and outputs a signal corresponding to the received operation to the calculation unit 26. The input set values are, for example, the set temperature of the air-conditioning area, humidity, air volume, wind direction, and the like. The input unit 22 may include a dedicated key, a dial switch, a mouse, a touch pad, a keyboard, and the like.

  The communication unit 24 measures the measurement data measured by the measurement unit 16 connected to the other air conditioning control device 20 and the set value (second control target) set in the other air conditioner 10 by the other air conditioning control device 20. ) And the acquired setting value is output to the calculation unit 26.

  The storage unit 25 stores, for example, a program for the calculation unit 26 to function, a past actual value of power consumption in the air conditioning area, an air conditioning load peak value, and the like. Further, the storage unit 25 stores specifications and position information of the air conditioner 10 and the air conditioning control device 20 installed in the adjacent air conditioning area. The position information is, for example, the distance from an air conditioner 10 or air conditioning control device 20 to an air conditioner 10 in an adjacent air conditioning area, or an air conditioner 10 in an adjacent air conditioning area with respect to an air conditioner 10 or air conditioning control device 20. Direction.

  The calculation unit 26 includes a load estimation unit 28. The calculation unit 26 calculates a set value (first control target) for optimally controlling the target space 4, and controls the air conditioner 10 based on the calculated set value. The setting value calculated by the calculation unit 26 is, for example, a setting value given to the air conditioner 10 and includes an air supply temperature, an air volume, a wind direction, and the like. The load estimation unit 28 calculates the air conditioning load of the air conditioning area controlled by the own device and the heat load flowing in and out of the adjacent air conditioning area. Details of the functions of the calculation unit 26 and the load calculation unit 28 will be described later.

FIG. 3 is a flowchart for explaining the flow of processing executed by the air conditioning control device 20. FIG. 4 is a conceptual diagram of processing executed by the air conditioning control device 20. This process is a process performed in real time while the air conditioner 10 is in operation. The calculation unit 26 determines supply heat amounts u ₁ to u ₆ and transfer heat amounts u ₇ to u ₁₃ from the current time to N steps ahead. With reference to FIG. 3 and FIG. 4, the process which the air-conditioning control apparatus 20 performs is demonstrated.

First, the calculation unit 26 measures the measurement data (for example, room temperature) output to the air conditioning control device 20 in the adjacent air conditioning area via the communication unit 24 or the set value (set in the air conditioner 10 in the adjacent air conditioning area). For example, the set supply air temperature) is acquired (step S100).
Next, the load estimation unit 28 of the calculation unit 26 sets the air conditioning load d _i (k) (k = 1 to k = N) of each air conditioning area (i = 1 to i = 6) from the current time to N steps ahead. ) Is estimated (step S102). The air conditioning load is estimated from the past actual value of power consumption in each air conditioning area, the air conditioning load peak value, and the like. The load estimation unit 28 estimates the air conditioning load with reference to, for example, the power consumption of the air conditioning area at a predetermined time stored in the storage unit 25.

Next, the calculation unit 26 considers the air conditioning load and the amount of movement heat in the air conditioning area using the measurement data and the set value acquired in step S100 and the estimated value of the air conditioning load estimated in step S102 (1). The following formulas (2) and (3) are used so as to minimize the supply heat amounts u ₁ to u ₆ and also minimize the transfer heat amounts u ₇ to u ₁₃ between the air-conditioning areas while balancing the supply heat amounts shown in the formula (1). ) U # that minimizes the air conditioning objective function shown in the equation is calculated (step S104).

ここで、ｑ_ｉは重み係数、ｕ＃＝（ｕ（０），・・・，ｕ（Ｎ））、ｕ（ｋ）＝（ｕ_１（ｋ），・・・ｕ_１３（ｋ））である。

Here, q _i is a weighting coefficient, u # = (u (0),..., U (N)), u (k) = (u ₁ (k),... U ₁₃ (k)) is there.

In FIG. 4, for example, the objective function of the air-conditioning area 5 can be written by equation (4).

In addition, the objective function of the amount of movement heat that moves between the air-conditioning area 2 and the air-conditioning area 5 can be expressed by equation (5).

ここでｗ_ｉ＞０は重み係数である。 Therefore, the entire air conditioning control system 1 can be written by equation (6) and u # may be calculated.

Here, w _i > 0 is a weighting factor.

ここで、α_ｋはパラメータ、Ｍ_ｉ＝Ｎ_ｉ∪｛ｉ｝である。Ｎ_ｉは、空調エリアｉに隣接する空調エリアｊの集合である。また、

である。
［参考文献１］
畑中健志、藤田政之「システム科学技術のための分散協調最適化とポテンシャルゲーム」、計測と制御 第５１巻１号、２０１２年
（７）式は、空調エリアｉと隣接する空調エリアのみに係るパラメータしか含まないため、各空調機器１０の空調制御装置２０において、ｕ＃_ｉ（ｋ+１）を算出することができる。 According to the distributed cooperative control theory, this problem can be converged to the minimum solution of f by updating the solution u # with the consensus gradient algorithm as shown in the following equation (7).

Here, α _k is a parameter, M _i = N _i ∪ {i}. N _i is a set of air conditioning areas j adjacent to the air conditioning area i. Also,

It is.
[Reference 1]
Takenaka Hatanaka, Masayuki Fujita “Distributed Coordination Optimization and Potential Game for System Science and Technology”, Measurement and Control, Vol. 51, No. 1, 2012 (7) Therefore, u # _i (k + 1) can be calculated in the air conditioning control device 20 of each air conditioning device 10.

Next, the calculation unit 26 supplies the air supply of the air conditioner 10 from the supply heat amounts u ₁ (1) to u ₆ (1) of the next step among the supply heat amounts u # of the air conditioner 10 calculated in step S104. A temperature setting value and an air volume setting value are calculated, and an air supply temperature setting value and an air volume setting value, which are control setting values calculated in the air conditioner 10, are set (step S106).

  FIG. 5 is a diagram showing a comparison result in which control responses by the distributed cooperative control by the conventional control (PID control) and the air conditioning control device 20 of the present embodiment are compared by simulation when the air conditioner in the air conditioning area 5 fails. . The room temperature (predetermined space) in the two air-conditioning areas is controlled at a set temperature of 26 degrees [° C.] from the initial state where the temperature is 30 degrees [° C.]. In normal times, both responses are almost the same, but when the air conditioner fails, there is a difference in the responses of the air conditioners in the air conditioning area 4 and the air conditioning area 5. In the air-conditioning area 5 where the air conditioner has failed, the tracking speed of the room temperature to the set temperature is reduced by about 20% as a time constant by the distributed cooperative control by the air-conditioning control device 20 of this embodiment compared to the conventional control. Yes. This is considered to be because the air conditioner in the air conditioning area 4 is controlled so as to overshoot the set temperature by the distributed cooperative control by the air conditioning control device 20 of the present embodiment compared to the conventional control. The air conditioner in the air conditioning area 4 has a room temperature that is higher than the set temperature in the adjacent air conditioning area 5, so that the difference is filled by the part of the consensus control with the adjacent area by the distributed cooperative control. Has been done.

  As described above, the entire air conditioning control system 1 is optimally controlled without the need for a central control device such as EMS (Energy Management System) by cooperative control using the set values of the air conditioners 10 in adjacent air conditioning areas. can do. Even when the air conditioner 10 breaks down, the control setting value of the air conditioner 10 that minimizes the objective function of the entire air conditioning control system 1 can be calculated, so that the temperature distribution can be made uniform, and the target space 4 can satisfy the comfort of the occupants.

  According to 1st Embodiment described above, the calculation part 26 of the air-conditioning control apparatus 20 is given to the air conditioning machine 10 which makes control object the measurement data acquired by the measurement part 16, and a certain area | region with a predetermined space. To improve the comfort of the air-conditioned space because the setting value given to the air conditioner 10 is calculated based on the set value and the set value given to the air conditioner 10 whose control target is an area adjacent to a certain area. Can do.

(Second Embodiment)
Hereinafter, the second embodiment will be described. Here, the difference from the first embodiment will be mainly described, and the description of the functions and the like common to the first embodiment will be omitted. The second embodiment is different from the first embodiment in the method of calculating the control set value.

FIG. 6 is a flowchart for explaining the flow of processing executed by the air conditioning control device 20 of the second embodiment. FIG. 7 is a conceptual diagram of processing executed by the air conditioning control device 20 of the second embodiment. This process is a process performed in real time while the air conditioner 10 is in operation. The calculation unit 26 determines supply heat amounts u ₁ to u ₆ from the current time to N steps ahead. With reference to FIG. 6 and FIG. 7, the process which the air-conditioning control apparatus 20 performs is demonstrated.

ここで、ｘ_ｉ（ｔ）＝Ｔ_ｉ（ｔ）−Ｔ_ｉ ^ｓである。 First, the calculation part 26 acquires the setting value set to the air conditioner 10 of the adjacent air conditioning area via the communication part 24 (step S200).
Next, the calculation part 26 calculates supply heat amount using the setting value acquired by step S200 (step S202). Specifically, the calculation unit 26 considers the dynamic characteristics of the air-conditioning areas (i1 to i6), and the room (predetermined space) temperature T _i (t) in which the air-conditioner 10 acquired from the measurement unit 16 is installed. purpose but to match the set temperature T _i ^s of the air conditioner 10 that is input from the input unit 22, represented by the square sum of errors from the set temperature of the temperature of the air conditioning area shown in the following equation (9) A supply heat amount S _i (t) that minimizes the function is calculated.

Here, x _i (t) = T _i (t) −T _i ^s .

ここで、ｃ_ｉ、λ_ｉｊは、それぞれ、各空調エリアの熱容量、各空調エリアから隣接エリアへの熱伝導率を表すパラメータ、Ｎ_ｉは、空調エリアｉに隣接する空調エリアの集合である。各部屋温度Ｔ_ｉ（ｔ）が設定温度Ｔ_ｉ ^ｓとなる平衡点での供給熱量Ｓ_ｉ（ｔ）をＳ_ｉ ^ｓとし、供給熱量の平衡点からの差分をｕ_ｉ（ｔ）＝Ｓ_ｉ（ｔ）−Ｓ_ｉ ^ｓと置くと、空調エリアの動特性は、次の（１１）式のように表される。

Now, it is assumed that the dynamic characteristics of each air-conditioning area are expressed by the following equation (10) assuming a mass system of one representative room temperature. For example, the dynamic characteristic c ₅ (dT ₅ / dt) of the air-conditioning area i ₅ is −F ₅₂ −F ₅₄ −F ₅₆ + S ₅ . Outflow heat amount F ₅₂ = λ ₅₂ (T ₅ -T ₂ ), outflow heat amount F ₅₄ = λ ₅₂ (T ₅ -T ₄ ), outflow heat amount F ₅₆ = λ ₅₂ (T ₅ -T ₆ ), S ₅ is supply heat amount It is.

Here, c _i and λ _ij are parameters indicating the heat capacity of each air-conditioning area, the thermal conductivity from each air-conditioning area to the adjacent area, and N _i is a set of air-conditioning areas adjacent to the air-conditioning area i. The supply heat quantity S _i (t) at the equilibrium point where each room temperature T _i (t) becomes the set temperature T _i ^s is S _i ^s, and the difference of the supply heat quantity from the equilibrium point is u _i (t) = S _i. When (t) −S _i ^s is set, the dynamic characteristic of the air-conditioning area is expressed as the following equation (11).

他の空調エリアも同様であり、各空調エリアの動特性（１１）式は、次の（１３）式の形に書くことができる。

ここで、Ｍ_ｉ＝Ｎ_ｉ∪｛ｉ｝である。 In FIG. 6, for example, the dynamic characteristic of the air-conditioning area 5 can be written by the following equation (12).

The same applies to the other air-conditioning areas, and the dynamic characteristic (11) of each air-conditioning area can be written in the form of the following expression (13).

Here, M _i = N _i ∪ {i}.

各空調機１０を制御する空調制御装置２０の（１４）式を各空調エリアの動特性の（１３）式に代入すると、次の式（１５）となる。

Now, as the air conditioning control device 20 of the air conditioner 10 in each air conditioning area, an error from an integrated value of an error from the room temperature setting value of the air conditioning area, the self air conditioning area, and a room temperature setting value of the adjacent air conditioning area. Consider the input of the following equation (14) consisting of:

Substituting the equation (14) of the air conditioning control device 20 that controls each air conditioner 10 into the equation (13) of the dynamic characteristics of each air conditioning area, the following equation (15) is obtained.

だから、（１５）式は、空調エリア全体の目的関数、次の（１７）式を分散協調制御する合意勾配アルゴリズム（１８）式となっている。

したがって、（１４）式より供給熱量Ｓ_ｉ（ｔ）を算出すれば、目的関数（１７）式を達成することができる。 From the control objective function (9), the following expression (16) can be derived.

Therefore, the equation (15) is an agreed gradient algorithm (18) equation that performs distributed cooperative control on the objective function of the entire air-conditioning area, the following equation (17).

Therefore, if the heat supply amount S _i (t) is calculated from the equation (14), the objective function (17) can be achieved.

Next, the calculation unit 26 calculates and calculates a supply air temperature setting value and an airflow setting value, which are control setting values of the air conditioner 10, based on the obtained heat supply amount S _i (t) of the air conditioner 10. The supply air temperature setting value and the air volume setting value are set in the air conditioner 10 (step S204). Thereby, the process of this flowchart is complete | finished.

  As shown in FIG. 5 described above, the entire air conditioning control system 1 without the need for a central control device such as an EMS (Energy Management System) by cooperative control using the set values of the air conditioners 10 in adjacent air conditioning areas. Can be optimally controlled. Even when the air conditioner 10 breaks down, the control setting value of the air conditioner 10 that minimizes the objective function of the entire air conditioning control system 1 can be calculated, so that the temperature distribution can be made uniform, and the target space 4 can satisfy the comfort of the occupants.

  According to 2nd Embodiment demonstrated above, the calculation part 26 of the air-conditioning control apparatus 20 is given to the air conditioning machine 10 which makes control object the measurement data acquired by the measurement part 16, and an area | region with a predetermined space. To improve the comfort of the air-conditioned space because the setting value given to the air conditioner 10 is calculated based on the set value and the set value given to the air conditioner 10 whose control target is an area adjacent to a certain area. Can do.

(Third embodiment)
Hereinafter, a third embodiment will be described. Here, the difference from the first embodiment will be mainly described, and the description of the functions and the like common to the first embodiment will be omitted. The third embodiment is different from the first embodiment in the method of calculating the control set value.

ここでｃ_ｉおよびα_ｉｊは、パラメータである。
図８は、第３の実施形態の空調制御装置２０が実行する処理の概念図である。図８において、例えば空調エリア５（ｉ＝５）の空調機１０の制御について考えると、空調負荷Ｄ_５＝ｃ_５（Ｔ_５−Ｔ_５ ^ｓ）、空調エリア２、空調エリア４、空調エリア６へ流出する熱負荷は、それぞれ、Ｆ_５２＝α_５（Ｔ_５−Ｔ_２）、Ｆ_５４＝α_５４（Ｔ_５−Ｔ_４）、Ｆ_５６＝α_５６（Ｔ_５−Ｔ_６）である。 The flow of processing executed by the air conditioning control device 20 will be described with reference to FIG. This process is a process performed in real time while the air conditioner 10 is in operation.
First, the calculation part 26 acquires a setting value from the air conditioner 10 of an adjacent air conditioning area via the communication part 24 (step S100).
Next, the load estimation unit 28 of the calculation unit 26 calculates the air conditioning load D _i of the target air conditioning area and the thermal load F _ij flowing out to the adjacent air conditioning area (step S102). The load estimating unit 28 of the calculating unit 26 receives, for example, the air conditioning load D _i and the heat load F _ij from the input unit 22 and the return air temperature (suction temperature) T _i of the air conditioner 10 measured by the measuring unit. was used and the set temperature T _i ^s for air conditioning area, the return air temperature T _j of the air conditioner 10 installed in the air conditioning area adjacent acquired from the communication unit 24, the following (19), (20) as equation To calculate.

Here, c _i and α _ij are parameters.
FIG. 8 is a conceptual diagram of processing executed by the air conditioning control device 20 of the third embodiment. In FIG. 8, for example, considering the control of the air conditioner 10 in the air conditioning area 5 (i = 5), the air conditioning load D ₅ = c ₅ (T ₅ −T ₅ ^s ), the air conditioning area 2, the air conditioning area 4, and the air conditioning area 6. heat load flowing into _{each, F 52 = α 5 (T} 5 -T 2), F 54 = α 54 (T 5 -T 4), is _{F 56 = α 56 (T 5} -T 6).

ここで、Ｎｉは空調エリアｉに隣接する空調エリアｊの集合、ｑｉは重み係数である。図８において、例えば空調エリア５の空調機１０の目的関数は、次の（２２）式と書くことができる。

したがって、空調制御システム１全体では、各空調機１０の目的関数（２１）式の総和を取り、次の（２３）式の空調機１０の供給熱量Ｓを算出すればよい。

ここで、ｗ_ｉ＞０は重み係数である。
分散協調制御理論によると、この問題は、次式のような合意勾配アルゴリズムにより解Ｓ_ｉを更新することにより、ｆの最小化解に収束させることができる。

ここで、α_ｋはパラメータ、Ｍ_ｉ＝Ｎ_ｉ∪｛ｉ｝である。（２４）式は、空調エリアｉと隣接する空調エリアのみに係るパラメータしか含まないため、各空調機１０の空調制御装置２０において、Ｓ_ｉ（ｋ+１）の算出が可能である。次に、算出部２６は、得られた空調機１０の供給熱量Ｓ_ｉから、空調機１０の制御設定値である給気温度設定値および風量設定値を算出し、空調機１０に設定する（ステップＳ１０６）。これにより本フローチャートの処理は終了する。 Next, the calculation unit 26 uses the estimated load value to minimize the supply heat amount while balancing the total of the air conditioning load and the inflow / outflow load of the air conditioning area and the supply heat amount (21) The supply heat quantity S _i of the air conditioner 10 that minimizes the air conditioning objective function shown in the equation is calculated (step S104).

Here, Ni is a set of air conditioning areas j adjacent to the air conditioning area i, and qi is a weighting coefficient. In FIG. 8, for example, the objective function of the air conditioner 10 in the air conditioning area 5 can be written as the following equation (22).

Therefore, in the entire air conditioning control system 1, the sum of the objective function (21) expression of each air conditioner 10 may be taken to calculate the supply heat amount S of the air conditioner 10 of the following expression (23).

Here, w _i > 0 is a weighting factor.
According to the distributed cooperative control theory, this problem can be converged to a minimized solution of f by updating the solution S _i with the consensus gradient algorithm as follows.

Here, α _k is a parameter, M _i = N _i ∪ {i}. Since the equation (24) includes only parameters relating only to the air conditioning area adjacent to the air conditioning area i, the air conditioning control device 20 of each air conditioner 10 can calculate S _i (k + 1). Next, the calculation unit 26 calculates a supply air temperature setting value and an airflow setting value, which are control setting values of the air conditioner 10, from the obtained heat supply amount S _i of the air conditioner 10, and sets them in the air conditioner 10 ( Step S106). Thereby, the process of this flowchart is complete | finished.

  According to the third embodiment described above, the calculation unit 26 of the air conditioning control device 20 is provided to the air conditioner 10 that controls the measurement data acquired by the measurement unit 16 and an area having a predetermined space. To improve the comfort of the air-conditioned space because the setting value given to the air conditioner 10 is calculated based on the set value and the set value given to the air conditioner 10 whose control target is an area adjacent to a certain area. Can do.

(Modification of the first embodiment and the second embodiment)
Hereinafter, modifications of the first embodiment and the second embodiment will be described. Here, differences from the first embodiment and the second embodiment will be mainly described, and descriptions of functions and the like common to the first embodiment and the second embodiment will be omitted. In the first embodiment and the second embodiment, it is assumed that one air conditioner 10 is installed in the air conditioning area. However, in the modification, a plurality of air conditioners 10 are provided in the air conditioning area.

  FIG. 9 is a diagram for explaining a configuration of an air conditioning control system 1A including an air conditioning control device 20 according to a modification. The air conditioning control system 1A includes, for example, four air conditioners 10 in the air conditioning area. The air conditioning control device 20 controls the four air conditioners 10 installed in the air conditioning area. For example, the air conditioning control device 20 provides the four air conditioners 10 with the supply air temperature setting value and the air volume setting value calculated by the method described in the first embodiment or the second embodiment. In this case, for example, the air conditioning controller 20 calculates the total amount of heat supplied by the four air conditioners 10 installed in the air conditioning area, and the four air conditioners 10 output the calculated amount of heat supplied in total. Thus, the air conditioner 10 is controlled. Thereby, the temperature distribution of the target space 4 can be made uniform, and the comfort of the occupants in the target space 4 can be satisfied. As a result, the air conditioning control device 20 can improve the comfort of the air-conditioned space.

  According to at least one embodiment described above, an area state information acquisition unit (21) that acquires area state information indicating a state in the first area among areas obtained by dividing a predetermined space into a plurality of areas; The region state information acquired by the region state information acquisition unit, the first control target given to the first air conditioner that controls the first region, and the first region adjacent to the first region A correction unit (26) that corrects the first control target based on the second control target given to the second air-conditioning apparatus that controls the second region as a control target, thereby improving the comfort of the air-conditioned space. Can be improved.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Air conditioning control system, 4 ... Target space, 10a-10f ... Air conditioner, 16 ... Measurement part, 20a-20f ... Air conditioner control apparatus, 21 ... Interface part, 22 ... Input part, 24 ... Communication part, 25 ... Memory Part, 26 ... calculation part, 28 ... load estimation part

Claims (11)

A region state information acquisition unit that acquires region state information indicating a state in the first region among regions obtained by dividing the predetermined space into a plurality of regions;
The region state information acquired by the region state information acquisition unit, the first control target given to the first air conditioner that controls the first region, and the second adjacent to the first region A correction unit that corrects the first control target based on a second control target given to the second air conditioner that controls the area of
An air conditioning control device. The correction unit corrects the first control target by further adding region state information indicating a state in the second region;
The air conditioning control device according to claim 1. The area state information is any one or more pieces of information among an air volume, a wind direction, and a return air temperature of the air conditioner output by the first air conditioner.
The air conditioning control device according to claim 1 or 2. The first control target is any one or more pieces of information among an air supply temperature, an air volume, a wind direction, and a set temperature set in the first region of the first air conditioner.
The air conditioning control device according to any one of claims 1 to 3. A load for estimating an air conditioning load in a first area that is a control target of the first air conditioner and a heat load flowing into and out of the first area from the second area adjacent to the first area. An estimator;
The air conditioning control device according to any one of claims 1 to 4. The load estimation unit estimates an air conditioning load in the first region based on a difference between a suction temperature of the first air conditioning device and a set temperature set in the first region, Estimating the heat load flowing into and out of the second region based on the difference between the suction temperature of the air conditioner and the return air temperature of the second air conditioner;
The air conditioning control device according to claim 5. A load estimation unit for estimating the air conditioning load of the first region;
The correction unit is configured such that an error between the air conditioning load estimated by the load estimation unit and the amount of heat supplied by the first air conditioner and the amount of heat supplied by the first air conditioner are the first air conditioner. And correcting the first control target so as to reduce both the total amount of heat supplied by the air conditioner that is a control target for the area in the space including the second air conditioner,
The air conditioning control device according to any one of claims 1 to 6. The correction unit further corrects the first control target so that the amount of movement heat between the divided areas adjacent to each other is reduced.
The air conditioning control device according to claim 7. A plurality of the air conditioning control devices according to any one of claims 1 to 8,
The correction unit of the air conditioning control device is installed for each air conditioner that controls each area obtained by dividing a predetermined space into a plurality of areas. The control is performed using the air conditioner in any one of the areas adjacent to the area that is not controlled by itself as the second air conditioner, and the first control target is corrected.
Air conditioning control system. An area state information acquisition step for acquiring area state information indicating a state in the first area among the areas obtained by dividing the predetermined space into a plurality of areas;
The region state information acquired by the region state information acquisition step, the first control target given to the first air conditioner that controls the first region, and the second adjacent to the first region Correcting the first control target based on a second control target given to a second air conditioner that controls the area of
An air conditioning control method comprising: In the computer of the air conditioning control device,
An area state information acquisition step for acquiring area state information indicating a state in the first area among the areas obtained by dividing the predetermined space into a plurality of areas;
The region state information acquired by the region state information acquisition step, the first control target given to the first air conditioner that controls the first region, and the second adjacent to the first region Correcting the first control target based on a second control target given to a second air conditioner that controls the area of
Air conditioning control program to execute.

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