JP2016194375A - Control device, air conditioning system having control device, control method, and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrict the peak of the consumption power by the simplified control on the equipment side.SOLUTION: A control device 41 for controlling an air conditioning system having indoor equipment comprises control means 24 that controls the indoor equipment, in which the threshold of the air temperature at which the power consumption peaks in one day is classified into three or more levels, on the basis of the temperature correspondence information associating set temperature information of the indoor equipment according to the level, the set temperature information of the indoor equipment corresponding to the level including the temperature predicted to have the peak power consumption among the control target days is read out so as to control the indoor equipment as the set temperature using the read set temperature information of the indoor equipment, and in which at least one of the set temperature information of the indoor equipment is determined based on a reference set temperature which is preset as a temperature serving a reference for achieving the energy saving operation of the air conditioning system.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a control device, an air conditioning system including the control device, a control method, and a control program.

In recent years, building air-conditioning monitoring systems that simply monitor air-conditioning equipment using a WEB browser have become widespread. For example, in a large-scale building or the like, a whole building monitoring system having an energy management function called BEMS (Building Energy Management System) is installed. In small and medium-sized buildings, an inexpensive building air-conditioning monitoring system and air-conditioning centralized controller are additionally installed for the purpose of energy saving.
In addition, in order to reduce electricity bills by using such a building air-conditioning monitoring system, in large-scale buildings, peak cuts to air conditioners, etc. based on power meter information are performed so that the contracted power value is not exceeded during the daytime in summer. Control is in progress.

For example, Patent Document 1 below creates a power consumption history by associating power consumption collected from facility equipment with the highest temperature of the day, and obtains a predicted power consumption amount per day from the power consumption history and the predicted value of the highest temperature. A technique for calculating a control amount to be reduced in one day from the difference between the predicted monthly power amount and the monthly power amount upper limit value is disclosed by multiplying it by the number of days. .
In small and medium-sized buildings, when the contracted power value is exceeded, the air conditioner administrator or the like manually performs setting switching operations such as setting temperature relaxation, blowing operation / stopping, etc. as a peak cut setting.

JP 2002-258934 A

However, in the conventional method, when the peak cut is manually set, there is a problem that an appropriate switching operation may not be surely performed.
Further, the method of Patent Document 1 has a problem in that it requires a step of calculating a control amount to be reduced per day, which is complicated. Moreover, in the said patent document 1, the peak cut setting of an installation apparatus is the structure which performs remote monitoring operation from a management server, and the operator who manages the management center which monitors and operates the installation apparatus installed in each house, and an installation apparatus There is a problem that it is assumed to be provided by a contract with the owner, etc., and the owner of the equipment is hesitant to introduce it because the cost will be continuously generated with use.

  The present invention has been made to solve the above problems, and a control device that can suppress the peak of power consumption of the air conditioning system by simple control on the equipment machine side, and an air conditioning system and a control method including the control device An object of the present invention is to provide a control program.

In order to solve the above problems, the present invention employs the following means.
This invention is a control apparatus which controls an air conditioning system provided with an indoor unit, Comprising: The threshold value of the temperature in which power consumption becomes a peak value in one day is divided into three or more levels, and each according to the level Based on the temperature correspondence information that associates the set temperature information of the indoor unit, among the levels divided into three or more levels, the predicted value of the temperature at which the power consumption reaches the peak value in the control target day is included. The set temperature information of the indoor unit corresponding to the level is read, the read set temperature information is set as the set temperature of the indoor unit, and control means for controlling the indoor unit is provided, and the room in the temperature correspondence information is provided. At least one of the set temperature information of the machine is determined based on a reference set temperature that is set in advance as a reference temperature for realizing energy-saving operation of the air conditioning system. To provide a device.

  According to the configuration of the present invention, the temperature correspondence information that associates the threshold value of the temperature at which power consumption reaches a peak value within one day and the set temperature information of the indoor unit, divided into three or more levels, The set temperature information of the indoor unit corresponding to the level including the predicted value of the temperature at which the power consumption reaches the peak value in the control target day is read, and the read set temperature information is set as the set temperature of the indoor unit. To control the indoor unit. At least one set temperature information of the indoor unit set in the temperature correspondence information is determined based on a reference set temperature that is set in advance as a reference temperature for realizing energy saving operation of the air conditioning system. When an indoor unit is controlled by a set temperature set based on the reference set temperature, the set temperature based on the reference set temperature is forcibly set regardless of the set temperature set for the indoor unit until immediately before the control. Will be set.

As described above, depending on whether the predicted value of the temperature at which the power consumption reaches the peak value in the control target day is included in the threshold value of the temperature at which the power consumption reaches the peak value in the level-divided day. Thus, the indoor unit is controlled by the set temperature of the indoor unit corresponding to the level. This eliminates the need for manual temperature setting switching work when peak cut is required according to the predicted temperature of the control target day. In addition, since the set temperature information of the indoor unit is determined according to the threshold value of the temperature at which the power consumption reaches a peak value within a day, by setting the set temperature information that reduces the peak value of the power consumption The peak cut control of the air conditioning system is possible.
The temperature at which power consumption reaches a peak value within a day is the highest temperature during cooling operation and the lowest temperature during heating operation. Further, the temperature serving as a reference for realizing the energy saving operation of the air conditioning system is set to a temperature generally used as the energy saving operation (for example, 28 ° C. in the cooling operation).

  In the control device, the set temperature information other than the set temperature information determined based on the reference set temperature may be a temperature that reduces the load from the set temperature currently set in the indoor unit. .

If the cooling operation is performed in hot weather, the set temperature of the indoor unit may be set lower than the reference set temperature (for example, 18 ° C). However, the load is set from the set temperature set for the indoor unit. By setting the temperature to be reduced (for example, the current set temperature plus 1 ° C. = 19 ° C.), the cooling operation can be suppressed to avoid unnecessary cooling, leading to a peak reduction in power consumption. On the contrary, if the heating operation is performed in a cold time, the set temperature of the indoor unit may be set higher than the reference set temperature (for example, 26 ° C.), but from the set temperature set for the indoor unit By setting the temperature at which the load is reduced (for example, the current set temperature minus 1 ° C. = 25 ° C.), it is possible to suppress the heating operation and avoid unnecessary warming, leading to a peak reduction in power consumption.
Further, compared with the case where the set temperature is forcibly set to the set temperature based on the reference set temperature, the set temperature of the user is affected, and the comfort can be ensured.

  In the above control device, the predicted value of the temperature at which the power consumption reaches a peak value within the control target day is the peak power consumption within the same day of a different year within the past predetermined years for each day of the reference point. It is good also as calculating based on the average value of the temperature which became a value.

  Assuming that the average temperature at which the power consumption of the same day in different years over the past years at the reference point has a peak value approximates the temperature at which the power consumption peaked on the same day of the current year, Based on the results of the average value, a predicted value of the temperature of the power consumption peak value on the control target day is obtained. Thereby, the temperature of the power consumption peak value on the control target day can be easily predicted. Information on the temperature at which the power consumption has reached its peak value within one day in the past predetermined years may be stored in, for example, a database and read from there, or may be appropriately acquired via the Internet. .

  In the control device, the predicted value of the temperature at which the power consumption reaches a peak value on the control target day may be the predicted maximum temperature or the predicted minimum temperature of the reference point provided from the weather forecast.

  Even if the control target day is expected to have a unique maximum temperature or minimum temperature compared to the past, a temperature closer to the actually measured maximum temperature or minimum temperature can be predicted. The predicted maximum temperature or the predicted minimum temperature of the reference point provided from the weather forecast may be, for example, manually input from a user (administrator) who confirmed the weather forecast via an input device or the like. You may acquire from a weather forecast service provision site via networks, such as.

  In the control device, when the indoor unit is in a cooling operation, the temperature correspondence information indicates that the higher the temperature of the threshold value of the temperature at which the power consumption reaches a peak value in the day, the higher the level of the indoor unit. It is good also as setting so that the temperature of the said setting temperature information may become high.

  As the maximum temperature rises, the user (user, resident) tends to strengthen the cooling operation, and the power consumption increases as the cooling operation is strengthened. By setting the temperature of the set temperature information higher as the temperature threshold at which the power reaches a peak value is higher, the peak value of power consumption predicted in the cooling operation is suppressed.

  In the control device, when the indoor unit is in a heating operation, the temperature correspondence information indicates that the temperature of the threshold value of the temperature at which the power consumption becomes a peak value in the day is lower, the lower the level of the indoor unit. The temperature of the set temperature information may be set to be low.

  As the minimum temperature decreases, the user (user, resident) tends to strengthen the heating operation, and the power consumption increases as the heating operation is increased. By setting the set temperature lower as the temperature threshold at which the power reaches a peak value is lower, the peak of power consumption predicted in the heating operation is suppressed.

  The present invention provides an air conditioning system including an indoor unit and the control device described above.

  The present invention is a control method of an air conditioning system including an indoor unit, wherein the threshold value of the temperature at which power consumption reaches a peak value in one day is divided into three or more levels, and each of the indoors is controlled according to the level. Based on the temperature correspondence information in which the set temperature information of the machine is associated, among the levels divided into three or more stages, the predicted value of the temperature at which the power consumption in the control target day reaches a peak value is included. Reading the set temperature information of the indoor unit corresponding to the level, setting the read set temperature information as the set temperature of the indoor unit, and controlling the indoor unit; and the setting of the indoor unit in the temperature correspondence information A step in which at least one of the temperature information is determined based on a reference set temperature preset as a reference temperature for realizing energy-saving operation of the air conditioning system. The law provides.

  The present invention is a control program for controlling an air conditioning system including an indoor unit, and divides the threshold value of the temperature at which power consumption reaches a peak value in one day into three or more levels, and each according to the level Based on the temperature correspondence information that associates the set temperature information of the indoor unit, among the levels divided into three or more levels, the predicted value of the temperature at which the power consumption reaches the peak value in the control target day is included. Reading the set temperature information of the indoor unit corresponding to the level, setting the read set temperature information as the set temperature of the indoor unit, and controlling the indoor unit, and the indoor unit in the temperature correspondence information At least one of the set temperature information is a process that is determined based on a reference set temperature that is set in advance as a reference temperature for realizing an energy saving operation of the air conditioning system; Providing a control program to be executed by a computer.

  The present invention has an effect of suppressing the peak of power consumption of the air conditioning system by simple control on the equipment side.

It is a schematic block diagram of the air conditioning system which concerns on this invention. It is the figure which showed the hardware constitutions of the air-conditioning monitoring apparatus which concerns on this invention. It is a functional block diagram of the air-conditioning monitoring apparatus which concerns on this invention. It is an example of a screen of the cooling peak cut setting at the time of cooling operation. It is a functional block diagram of a control device concerning the present invention. It is an example of a screen of the heating peak cut setting at the time of heating operation.

  DESCRIPTION OF EMBODIMENTS Embodiments of a control device according to the present invention, an air conditioning system including the control device, a control method, and a control program will be described below with reference to the drawings.

In the present embodiment, an air conditioning system including a plurality of indoor units and a control device that controls them will be described as an example, but the number of indoor units is not particularly limited and may be one.
As shown in FIG. 1, an air conditioning system 1 according to the present embodiment includes n (n is an integer) packaged air conditioner indoor units (hereinafter referred to as “indoor units”) P1, P2,. An air conditioner outdoor unit (hereinafter referred to as “outdoor unit”) Q 1, an air conditioning monitoring device 4, and a building management host 3 are provided.
The remote controllers R1, R2,... Operate the respective indoor units P1, P2,. The remote control communication line 6 connects the remote controls R1, R2,... And the indoor units P1, P2,..., And outputs operations from the remote controls R1, R2 to the indoor units P1, P2,. Unless otherwise specified, the indoor unit is described as an indoor unit P, and the remote controller is described as a remote control R.

  The air-conditioning monitoring device 4 and the building management host 3 are connected via the building management communication network 2 so that information can be transmitted and received between them. The building management communication network 2 is a network using a communication protocol (for example, TCP / IP) standardized for building management, and is, for example, a LAN (Local Area Network).

  The air conditioning monitoring device 4, the indoor units P1, P2,... Pn and the outdoor unit Q1 are connected via the air conditioning control network 5, and can transmit and receive information to and from each other. The communication protocol of the air conditioning control network 5 may be, for example, a communication protocol originally developed for air conditioner control monitoring by an air conditioning manufacturer or the like, or may be a standardized communication protocol.

  The building management host 3 analyzes the information related to the operating state received from the air conditioning monitoring device 4 and displays it on the output device (display screen) 7. Therefore, the building management host 3 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input device, an output device 7 and the like (not shown). Specifically, the building management host 3 includes a WEB browser, and controls the indoor units P and the outdoor units Q1 by accessing the air conditioning monitoring device 4 via the WEB browser.

The air conditioning monitoring device 4 is a computer system (computer system) as shown in FIG. 2, and includes a CPU (Central Processing Unit) 11, a main storage device 12 such as a RAM (Random Access Memory), an auxiliary storage device 13, a keyboard, An input device 14 such as a mouse, an output device 15 such as a display and a printer, and a communication device 16 that exchanges information by communicating with external devices are provided.
The auxiliary storage device 13 is a computer-readable recording medium, such as a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, or a semiconductor memory. Various programs (for example, control programs) are stored in the auxiliary storage device 13, and the CPU 11 reads out the programs from the auxiliary storage device 13 to the main storage device 12 and executes them to realize various processes.

Specifically, as shown in FIG. 3, the air conditioning monitoring device 4 includes a control device 41, a storage unit 42, a control network communication unit 43, and a building management network communication unit 44.
The control network communication unit 43 communicates with each indoor unit P via the air conditioning control network 5.
The building management network communication unit 44 communicates with the building management host 3 via the building management communication network 2.

The storage unit 42 stores temperature correspondence information and reference point information (details will be described later). The temperature correspondence information is divided into three or more levels of the temperature threshold at which the power consumption reaches a peak value within one day, and the set temperature information of the indoor unit P is respectively determined according to the three or more levels. It is a correspondence. The temperature at which power consumption reaches a peak value within a day is the highest temperature during cooling operation and the lowest temperature during heating operation. In the present embodiment, a case where the air conditioning system 1 is in a cooling operation will be described as an example.
A situation where the power consumption reaches a peak value in the cooling operation may be a time zone in which the amount of solar radiation is large, such as during the daytime in summer.

  For example, the set temperature information of the indoor unit P is described as a target room temperature of the air-conditioning target room in which the indoor unit P is arranged and is air-conditioned. However, the present invention is not limited to this, and air conditioning assumed from the suction temperature of the indoor unit P It may be the room temperature of the target room, or may be the blowing temperature blown out from the indoor unit P.

  Further, at least one of the set temperature information of the indoor unit P in the temperature correspondence information is a reference set temperature (hereinafter also referred to as “reference temperature”) preset as a reference temperature for realizing the energy saving operation of the air conditioning system 1. To be determined. For example, during the cooling operation, the reference set temperature is set to a higher temperature setting (for example, 28 ° C.), which is a temperature generally used for energy saving operation, as the target room temperature in the air conditioning target room of the indoor unit, and during the heating operation, The target room temperature in the air-conditioning target room is set to a lower temperature setting (for example, 20 ° C.) that is a temperature generally used for energy saving operation.

  In other words, the reference set temperature of the indoor unit P for reducing the power consumption by reducing the capacity by reducing the rotation speed of the compressor (not shown) of the outdoor unit Q1 or shortening the operation time. It is set temperature.

Further, the set temperature information other than the set temperature information determined based on the reference set temperature reduces the load from the set temperature (for example, the target room temperature of the air-conditioning target room) currently set in the indoor unit P. The temperature (at the time of cooling, a temperature at which the set temperature set to the target room temperature of the air-conditioning target room is increased by a predetermined value).
In the present embodiment, the “set temperature information of the indoor unit P” is the target room temperature of the air-conditioning target room, and the control device 41 controls the indoor unit P to be the target room temperature. The “set temperature information” is hereinafter referred to as “indoor unit control set temperature”.

  As described above, the temperature correspondence information is information stored in the storage unit 42 in association with the level, the maximum temperature threshold, the indoor unit control set temperature, and the like. When the administrator operates the building management host 3 and inputs a request for “peak cut setting” to the control device 41 via the WEB browser, the temperature correspondence information is read from the storage unit 42.

The temperature correspondence information is set and adjusted as an initial setting when the air conditioning system 1 is introduced.
FIG. 4 shows a screen example of “cooling peak cut setting” for peak cutting of power consumption during the daytime in summer, and is a screen for setting temperature correspondence information in the cooling operation.
As shown in FIG. 4, in the cooling peak cut setting, “setting level”, “setting condition”, “indoor unit control setting temperature”, “remote control operation”, “outdoor unit control setting”, and “control time zone” are displayed in order from the left of the screen. In the lower part, “cooling reference temperature” and “peak cut control period” are shown.

The “setting level” is a level corresponding to the setting condition, and is shown in five levels from level 1 to level 5 in FIG. In the present embodiment, the level is shown in five stages, but is not limited to this and may be three or more stages.
The “setting condition” indicates a threshold value of the temperature at which power consumption reaches a peak value within one day. The maximum temperature is set for the cooling operation, and the minimum temperature is set for the heating operation. In addition, the setting condition varies the temperature condition of the highest temperature (or lowest temperature) according to the level.

The “indoor unit control set temperature” is a target temperature set in the air conditioning target room of the indoor unit P to be controlled by the control device 41. Specifically, the “indoor unit control set temperature” is a temperature at which the load is reduced (relaxed) from the set temperature currently set for the indoor unit P, a reference temperature for realizing energy saving operation, and a load from the reference temperature. It is set depending on the temperature to be reduced (relaxed).
For example, “0.5 ° C. relaxation” set at level 1 relaxes the set temperature currently set as the target temperature in the air-conditioning target room of each indoor unit P by 0.5 ° C., respectively. Here, mitigation is a setting that controls the air conditioning operation in a direction that suppresses the air conditioning operation. If the air conditioning operation is performed, the target temperature of the air conditioning target room is raised and the air conditioning operation is weakened. The target temperature is lowered and controlled to weaken the heating operation.

  That is, at level 1 in FIG. 4, when the cooling operation is performed and the maximum temperature becomes 33.0 ° C. or higher, the set temperatures of all the indoor units P1, P2,. Increase by 5 ° C. For example, when the current set temperature of the indoor unit P1 is 18 ° C. and the set temperature of the indoor unit P2 is 20 ° C., if the temperature is relaxed by 0.5 ° C., the new set temperature for the indoor unit P1 is 18.5. The new set temperature for the indoor unit P2 is 20.5 ° C.

For example, the “reference temperature” set at level 3 is the “cooling reference temperature” shown in the lower part of FIG. 4 regardless of the target temperature of the air-conditioning target room currently set for each indoor unit P. The temperature set in (5) is adopted as the target temperature to be newly set in the indoor unit P, and is set as the set temperature forcibly set. That is, at level 3 in FIG. 4, when the cooling operation is performed and the maximum temperature is 35.0 ° C. or higher, the set temperatures of all the indoor units P1, P2,. Set to ° C.
Also, for example, “reference temperature + 1.0 ° C. relaxation” set at level 5 is a setting where the temperature set at “cooling reference temperature” is reduced by 1.0 ° C. so as to reduce the load. The temperature is adopted and set to a set temperature that is forcibly set.

  That is, at level 5 in FIG. 4, when the cooling operation is performed and the maximum temperature is 37.0 ° C. or higher, the set temperatures of all the indoor units P1, P2,. Set to 0 = 29.0 ° C.

“Remote control operation” sets whether to accept an operation from the remote controller R corresponding to the indoor unit P. When the prohibition is selected, the operation from the remote controller R is prohibited and controlled by the setting of the air conditioning monitoring device 4.
“Outdoor unit control setting” limits the output (capacity) of the outdoor unit Q1. The upper limit of the output (capacity) of the outdoor unit Q1 is suppressed.
“Control time zone” sets a control time zone to which these settings are applied. In addition, the control time zone may be set based on a time zone with a high unit price of electricity determined by the electric power company.

“Peak cut control period” designates a period during which the content displayed on the peak cut setting screen is applied.
As described above, the temperature correspondence information includes not only the indoor unit control set temperature but also the “remote control operation” prohibition as described above or the “outdoor unit control setting” outdoor with respect to the threshold of the level and the maximum temperature. Control information related to peak cut such as information on functional force limitation, “control time zone”, and “peak cut control period” may be included.

  The control device 41 controls the subordinate indoor unit P in response to an instruction from the building management host 3. Specifically, as shown in FIG. 5, the control device 41 includes a reference point setting unit 21, an air temperature acquisition unit 22, a correction unit 23, and a control unit (control means) 24.

The reference point setting unit 21 selects a reference point. For example, when the administrator accesses the control device 41 via a WEB browser, displays a screen for setting a location, and designates a reference point (for example, Shinjuku-ku) via the WEB browser, the reference point setting unit 21 Select “Shinjuku-ku” as the reference point.
The reference point can be selected from the location of the prefectural office of 47 prefectures, the capital, or another location, and is a point from which information on the past maximum temperature can be obtained.

  For information on the past maximum temperature, information published on the Internet or the like while connected to the Internet may be acquired appropriately online, or information published on the Internet or in documents may be stored in advance. It is good also as making it memorize | store in 42 and reading suitably from the memory | storage part 42 in the state (offline) which is not connected to the internet.

The temperature acquisition unit 22 acquires a predicted value of the maximum temperature on the control target day on which the air conditioning system 1 is controlled. Specifically, the temperature acquisition unit 22 calculates an average value of the temperatures at which the power consumption within the past predetermined years for each day of the selected reference point becomes a peak value, and uses the average value as the maximum temperature of the control target day. Estimated value.
For example, the temperature acquisition unit 22 calculates the maximum daily average temperature from July to September for the past 20 years, and implements it as data, so that the predicted maximum temperature for each day from July to September is calculated. Approximate.

  The daily maximum temperature average information is calculated by another general computer, etc., created with CSV (Comma-Separated Values) format and other general-purpose data, uploaded to the control device 41, and the temperature You may make it acquire in the acquisition part 22. FIG. Even if the indoor unit P is used at a point where data on the maximum temperature within the past predetermined years has not been collected in advance (for example, overseas), the temperature is obtained by uploading CSV format data to the control device 41. The unit 22 can easily predict the maximum temperature on the control target day based on the uploaded data.

In addition, between the point selected as the reference point and the point where the indoor unit P is actually placed, the geographical difference (e.g., the altitude difference between the reference point and the reference point, the coastal side, the reference point inland, the reference point, etc.) ) And surrounding environmental factors (for example, mountains, beaches, rivers, vegetation, sea surface reflections, heat island effects, etc.), there may be a temperature difference between the predicted maximum average temperature and the actual maximum temperature. is there. In order to reduce such a temperature difference, the controller 41 may be provided with a correction unit 23.
The correction unit 23 sets the correction temperature in consideration of the maximum temperature average value of the selected reference point and the temperature difference due to factors such as geographical and surrounding environment. The correction temperature is, for example, in the range of −2.0 ° C. to + 2.0 ° C., and can be set in increments of 0.1 ° C.

Based on the temperature correspondence information, the control unit 24 reads the indoor unit control setting temperature corresponding to the level including the predicted value of the temperature at which the power consumption reaches the peak value in the control target day, and reads the read indoor unit control setting The temperature is set as a new target temperature of the air-conditioning target room of the indoor unit P, and the indoor unit P is controlled.
When the indoor unit P is in the cooling operation, the temperature correspondence information is set so that the indoor unit control set temperature is higher as the temperature of the maximum temperature threshold is higher.
When the indoor unit P is in the heating operation, the temperature correspondence information is set so that the indoor unit control set temperature is lower as the temperature of the minimum temperature threshold is lower.

Here, the effect | action of the control apparatus 41 applied to the air conditioning system 1 which concerns on this embodiment is demonstrated.
〔Initial setting〕
The administrator operates the building management host 3 to start a WEB browser, and accesses the air conditioning monitoring device 4 from the WEB browser. Various setting screens of the indoor units P1, P2,... Pn to be controlled by the air conditioning monitoring device 4 are displayed on the WEB browser of the output device. When the administrator inputs a request for “cooling peak cut setting” from the WEB browser, a “cooling peak cut setting” request is output to the control device 41. When the control unit 41 acquires the “cooling peak cut setting” request, the temperature correspondence information during the cooling operation is read from the storage unit 42, and the display screen 7 of the building management host 3 displays “ The “Cooling peak cut setting” screen is presented.

The maximum temperature threshold value according to each level, the set temperature information for each indoor unit P set when the maximum temperature threshold value is exceeded by the administrator via the WEB browser, the temperature setting of the cooling reference temperature, these Is input, and a setting button is selected.
When it is detected that the setting button has been selected, the content input on the “cooling peak cut setting” screen is stored in the storage unit 42 as temperature correspondence information.
In addition, a screen for selecting a reference point is displayed by the administrator via the WEB browser, the reference point is selected on the screen, and the setting button is selected, so that information on the set reference point is stored. Stored in the unit 42.

[Cooling peak cut control]
When a predetermined time (for example, 7:00 am) of the day when the air conditioning system 1 starts operation, information on a reference point (for example, Shinjuku Ward) stored in the storage unit 42 is read, and the past of the reference point The maximum temperature (for example, 35.5 ° C.) of the control target day is predicted based on the maximum temperature average value at which the power consumption within the predetermined number of years becomes the peak value. Based on the predicted information on the maximum temperature (for example, 35.5 ° C.) of the control target day and the temperature correspondence information (for example, FIG. 4) read from the storage unit 42, the predicted value of the maximum temperature on the control target day. “Indoor unit control set temperature” (for example, “reference temperature” = “28.0 ° C.”) corresponding to the “set condition” (for example, level 3) of the temperature correspondence information including “” is read.

The read “indoor unit control set temperature” (for example, 28.0 ° C.) is determined as the target temperature of the air conditioning target room of the indoor unit P.
The control device 41 sends a control signal to the indoor unit P in order to forcibly control the target temperature of the air-conditioning target room to the reference temperature (for example, 28 ° C.) for all the indoor units P1, P2,. Output.
Each indoor unit P that has acquired the control signal for the set temperature is controlled so as to reach a target temperature (for example, 28 ° C.) based on the control signal.

  As described above, according to the control device 41 and the air conditioning system 1, the control method, and the control program according to the present embodiment, the level is divided into three or more stages, and the power consumption is within one day. The indoor unit control set temperature corresponding to the level including the maximum temperature of the predicted control target day is read from the temperature correspondence information in which the threshold value of the maximum temperature that becomes the peak value and the indoor unit control set temperature are associated with each other. The read indoor unit control set temperature is set as a new target temperature of the air conditioning target room of the indoor unit P, and the indoor unit P is controlled. At least one indoor unit control set temperature set in the temperature correspondence information is determined based on the reference set temperature. When the indoor unit P is controlled by the set temperature set based on the reference set temperature, the set temperature is forcibly set to the set temperature based on the reference set temperature regardless of the set temperature currently set for the indoor unit P. Will be.

  In this way, the indoor unit P is controlled by the indoor unit control set temperature corresponding to the level according to which of the threshold values of the maximum temperature divided into the predicted maximum temperature of the control target day. This eliminates the need to manually switch the temperature setting manually when peak cut is required according to the predicted temperature of the control target day. In addition, since the indoor unit control set temperature is determined according to the threshold of the maximum temperature at which the power consumption reaches its peak value, setting the target temperature to reduce the peak value of power consumption ensures that the air conditioning system 1 peak cut control.

If the cooling operation is performed in a hot season, the target temperature of the air conditioning target room of the indoor unit P may be set lower than the reference set temperature (for example, 18 ° C.). By setting the temperature to be relaxed (for example, the target temperature of the air-conditioning target room of the current indoor unit P plus 1 ° C. = 19 ° C.), it is possible to suppress the cooling operation and avoid unnecessary cooling and reduce the peak of power consumption It leads to.
At the reference point, the average temperature (for example, the highest temperature) at which the power consumption of the same day in different years over the past years has peaked is approximate to the temperature at which the power consumption of the current year reaches its peak value. Assuming that, the temperature of the power consumption peak value on the control target day is obtained based on the past average value. Thereby, the temperature of the power consumption peak value on the control target day can be easily predicted.

In the present embodiment, the predicted value of the maximum temperature on the control target day is calculated based on the maximum average temperature value within the past predetermined years, but is not limited thereto.
For example, the temperature acquisition unit 22 acquires information on the predicted maximum temperature or the predicted minimum temperature in the future at the reference point provided from the weather forecast as a predicted value of the temperature at which power consumption reaches a peak value in the control target day. May be. Further, not only the predicted value from the weather forecast is acquired on the day of the control target day, but also the predicted value of the maximum temperature from the present to one week ahead may be input. Thereby, forgetting to input the predicted value of the maximum temperature or the minimum temperature on the control target day can be prevented.

Further, the information obtained from the weather forecast may be information obtained by the temperature acquisition unit 22 confirming the weather forecast manually input by an administrator via an input device, or connected to the Internet. If it is an environment to be used, it may be input from a weather forecast service providing site on the Internet.
In addition, since the air conditioning system 1 described in the present embodiment can perform peak cut setting, conventionally remote monitoring configured by equipment installed in each house or the like and a management server for remotely monitoring the equipment is performed. The contract between the management server operator and the equipment owner, which was required for the peak cut setting of the mold, and the continuous costs related to it are unnecessary.

[Modification]
In the said embodiment, although the case where the air conditioning system 1 was carrying out air_conditionaing | cooling operation was mentioned as an example, it demonstrated, this invention is applicable also when it is heating operation. Specifically, “heating peak cut setting” for performing peak cut of power consumption in heating operation may be provided as temperature correspondence information. FIG. 6 shows a screen example of “heating peak cut setting” in the heating operation.
As shown in FIG. 6, “indoor unit control set temperature” is set as a “setting condition” for a plurality of threshold values of minimum temperatures corresponding to three or more levels. The situation where the peak value of power consumption occurs during heating operation may be a state in which the heating has been turned on since the heating has been turned off for a long time since sunset, for example, in the morning time zone in winter It is a start-up operation time zone where the load is high.

The “heating reference temperature” is a temperature (for example, 20 ° C.) set in order to realize a general energy saving operation of the heating operation.
As described in the above embodiment, the “indoor unit control set temperature” is a temperature at which the load is reduced (relaxed) from the current set temperature of the indoor unit P (at the time of heating, the target room temperature is currently set to the target room temperature of the air-conditioning target room). Set temperature), a reference temperature for realizing energy-saving operation, a temperature for reducing (relaxing) the load from the reference temperature, and the like.

  For example, in level 1, when the minimum temperature is 14.0 ° C. or lower, the temperature is lower by 0.5 ° C. (for example, 25 ° C.) than the target temperature (for example, 26 ° C.) of the current air-conditioning target room of the indoor unit P .5 ° C) as the new target temperature. Further, at level 3, when the minimum temperature is 12.0 ° C. or lower, the target temperature of the air conditioning target room of each indoor unit P is uniformly set to the heating reference temperature (for example, 20.0 ° C.). In level 5, when the minimum temperature is 10.0 ° C. or lower, the target temperature of the air-conditioning target room of each indoor unit P is uniformly 1.0 ° C. lower than the heating reference temperature (for example, 20.0 ° C.). (For example, 19.0 ° C.) is set as the new target temperature.

[Heating peak cut setting]
When a predetermined time (for example, 5:00 am) of the day when the air conditioning system 1 starts operation, information on a reference point (for example, Shinjuku Ward) stored in the storage unit 42 is read, and the past of the reference point A minimum temperature (for example, 10.5 ° C.) of the control target day is predicted based on a minimum temperature average value at which power consumption within a predetermined number of years becomes a peak value. Based on the predicted value of the minimum temperature (for example, 10.5 ° C.) of the control target day and the temperature correspondence information (for example, FIG. 6) read from the storage unit 42, the predicted value of the minimum temperature of the control target day is included. “Indoor unit control set temperature” (for example, “reference temperature−0.5 ° C.” = “20.0−0.5 = 19.5” corresponding to “set condition” (for example, level 4) ° C ") is read out.

The read “indoor unit control set temperature” (for example, 19.5 ° C.) is determined as a new target temperature of the air conditioning target room of the indoor unit P.
The control device 41 outputs a control signal to the indoor unit P in order to forcibly control the set temperature to the reference temperature (for example, 19.5 ° C.) for all the indoor units P1, P2,. .
Each indoor unit P that has acquired the control signal for the set temperature is controlled so as to have a target temperature (for example, 19.5 ° C.) based on the control signal.

  If the heating operation is performed in a cold time, the target temperature set by the indoor unit control set temperature may be set higher (for example, 26 ° C.). (For example, the set temperature minus 1 ° C. = 25 ° C. currently set as the target temperature of the air-conditioning target room of the indoor unit P), the heating operation can be suppressed and useless overheating can be avoided. It leads to peak reduction.

  In addition, this invention is not limited to embodiment mentioned above, In the range which does not deviate from the summary, it can change suitably.

DESCRIPTION OF SYMBOLS 1 Air conditioning system 21 Reference | standard point setting part 22 Air temperature acquisition part 23 Correction | amendment part 24 Control part (control means)
41 control device 42 memory | storage part P1, P2, ... Pn indoor unit Q1 outdoor unit

Claims (9)

A control device for controlling an air conditioning system including an indoor unit,
The temperature threshold value at which power consumption reaches a peak value within one day is divided into three or more levels, and three levels are set based on temperature correspondence information in which the set temperature information of the indoor unit is associated with each level. Of the levels divided as described above, the setting temperature information of the indoor unit corresponding to the level including the predicted value of the temperature at which power consumption reaches a peak value in the control target day is read, and the setting that has been read out The temperature information is set to the set temperature of the indoor unit, and includes control means for controlling the indoor unit,
At least one of the set temperature information of the indoor unit in the temperature correspondence information is determined based on a reference set temperature that is set in advance as a reference temperature for realizing an energy saving operation of the air conditioning system.   The set temperature information other than the set temperature information determined based on the reference set temperature is a temperature at which a load is reduced from the set temperature currently set in the indoor unit. Control device.   The predicted value of the temperature at which the power consumption reaches the peak value on the control target day is the temperature at which the power consumption has reached the peak value within the same day of the different year within the past predetermined years for each day of the reference point. The control device according to claim 1, wherein the control device is calculated based on an average value.   The predicted value of the temperature at which power consumption reaches a peak value in the control target day is the predicted maximum temperature or the predicted minimum temperature at the reference point provided from the weather forecast. Control device.   When the indoor unit is in a cooling operation, the temperature correspondence information indicates that the set temperature information of the indoor unit is higher as the temperature of the threshold value of the temperature at which power consumption reaches a peak value in the day is higher. The control device according to claim 1, wherein the control device is set so that the temperature is increased.   When the indoor unit is in a heating operation, the temperature correspondence information indicates that the temperature of the threshold value of the temperature at which power consumption reaches a peak value in the day is lower, the lower the temperature of the set temperature information of the indoor unit. The control device according to claim 1, wherein the control device is set so that the temperature is lowered. Indoor unit,
An air conditioning system comprising the control device according to any one of claims 1 to 6. A control method for an air conditioning system including an indoor unit,
The temperature threshold value at which power consumption reaches a peak value within one day is divided into three or more levels, and three levels are set based on temperature correspondence information in which the set temperature information of the indoor unit is associated with each level. Of the levels divided as described above, the setting temperature information of the indoor unit corresponding to the level including the predicted value of the temperature at which power consumption reaches a peak value in the control target day is read, and the setting that has been read out Setting temperature information as a set temperature of the indoor unit, and controlling the indoor unit;
At least one of the set temperature information of the indoor unit in the temperature correspondence information is determined based on a reference set temperature set in advance as a reference temperature for realizing energy saving operation of the air conditioning system. Control method having. A control program for controlling an air conditioning system including an indoor unit,
The temperature threshold value at which power consumption reaches a peak value within one day is divided into three or more levels, and three levels are set based on temperature correspondence information in which the set temperature information of the indoor unit is associated with each level. Of the levels divided as described above, the setting temperature information of the indoor unit corresponding to the level including the predicted value of the temperature at which power consumption reaches a peak value in the control target day is read, and the setting that has been read out A process for controlling the indoor unit by setting temperature information as a set temperature of the indoor unit;
At least one of the set temperature information of the indoor unit in the temperature correspondence information is a process that is determined based on a reference set temperature that is set in advance as a reference temperature for realizing an energy-saving operation of the air conditioning system. A control program for causing a computer to execute.

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