JP2011061988A - Demand control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a demand control system that effectively suppresses loss of comfort provided by an air conditioner, and the occurrence of running out of hot water while a water heater is used. <P>SOLUTION: The demand control system includes a decision means, a control means and a transmission means. The decision means calculates the predicted values of electric energy used by the air conditioner and the water heater, and then decides whether the operational capabilities of the air conditioner and the water heater are suppressed. The control means assigns the capability suppression levels to the air conditioner and the water heater, and generates a control signal for suppressing the operational capabilities. The transmission means transmits a control signal to the air conditioner and the water heater. The control means controls the capability suppression level of the water heater to be higher than that of the air conditioner mainly in the first time zone, and controls the capability suppression level of the air conditioner to be higher than that of the water heater mainly in the second time zone. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a demand control system that limits the amount of power used by a plurality of types of equipment.

  Conventionally, in buildings such as hotels and hospitals, a plurality of types of equipment such as air conditioners and water heaters are connected to a single main power source. In such a building, a demand control system that performs demand control that limits the amount of power used by equipment is used so that the total power consumption of the entire building does not exceed the contracted power amount.

  For example, the power amount control device described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2008-017665) is given priority over equipment that does not cause a serious problem even when the amount of power used is limited to some extent. By performing demand control, it is possible to effectively limit the amount of power used by equipment. In this electric energy control apparatus, a priority is set for each equipment device to be subject to demand control, and the demand control is preferentially performed on equipment devices having a high priority.

  However, when the demand control system performs demand control on the air conditioner and the hot water supply device, the loss of comfort provided by the air conditioner and the problem of running out of hot water when using the hot water supply device occur according to the time zone. There is a possibility.

  For example, during the daytime when the power consumption of the air conditioner is large, it is desirable that the demand control system does not limit the power consumption of the air conditioner as much as possible. In addition, when hot water is sufficiently stored in the hot water storage tank provided in the hot water supply device during the daytime, the demand control system can limit the amount of electric power used by the hot water supply device more than usual. At this time, if the demand control for the hot water supply device is not sufficiently performed, the demand control system restricts the total power consumption of the air conditioner and the hot water supply device to a predetermined power amount or less. May need to be done more than necessary. As a result, the comfort provided by the air conditioner can be lost.

  On the other hand, it is desirable that the demand control system does not limit the power consumption of the hot water supply device as much as possible at night when the amount of hot water used is generally large. In addition, since the air conditioning environment inside the building is somewhat more comfortable at night than during the day, the demand control system can limit the amount of power used by the air conditioner more than usual. At this time, if the demand control for the air conditioner is not sufficiently performed, the demand control system restricts the total power consumption of the air conditioner and the hot water supply device to a predetermined power amount or less. May need to be done more than necessary. As a result, there is a possibility that hot water runs out during future use of the hot water supply apparatus.

  Therefore, an object of the present invention is to provide a demand control system capable of effectively suppressing the loss of comfort provided by the air conditioner and the occurrence of hot water shortage when the hot water supply device is used.

  The demand control system according to the first aspect of the present invention comprises determination means, control means, and transmission means. In addition, the control object of the demand control system which concerns on 1st invention is an air conditioning apparatus and a hot-water supply apparatus. The determination means determines whether or not to suppress the operating capabilities of the air conditioner and the hot water supply device based on the predicted power consumption. The predicted power consumption is a predicted value of the power consumption of the air conditioner and the hot water supply device within a predetermined time, or a predicted value of the power consumption of the air conditioner, the hot water supply device, and other electrical equipment within a predetermined time. It is. The determination unit calculates the predicted power consumption based on the information on the power consumption of the air conditioner and the hot water supply device, or the information on the power consumption of the air conditioning device, the water heater, and other electrical equipment. The control unit assigns a capability suppression level to the air conditioner and the hot water supply device when the determination unit determines to suppress the operation capability of the air conditioner and the hot water supply device. The control means assigns a capability suppression level higher than the capability suppression level allocated to the air conditioner to the hot water supply device mainly in the first time zone. The control means assigns a capacity suppression level higher than the capacity suppression level allocated to the hot water supply apparatus to the air conditioner mainly in the second time zone. The second time zone is a time zone different from the first time zone. Moreover, a control means produces | generates the control signal which suppresses the driving capability of an air conditioning apparatus and a hot water supply apparatus based on a capability suppression level. The transmission means transmits the control signal generated by the control means to the air conditioning apparatus and the hot water supply apparatus.

  The demand control system according to the first invention is constructed, for example, in a building in which an air conditioner and a hot water supply device are installed, or in a building in which an air conditioner, a hot water supply device, and other electrical equipment are installed. Here, the other electric device is, for example, a lighting device or the like. This demand control system, for example, every time a predetermined demand calculation time (for example, one minute) elapses, the total power consumption of the building during the elapsed demand calculation time is calculated as a total power meter installed in the building. To calculate a predicted power consumption that is a predicted value of the total power consumption of the building during a predetermined demand period (for example, 30 minutes). And this demand control system allocates the electric power consumption of an air conditioner and a hot water supply apparatus by assigning a capability suppression level to an air conditioner and a hot water supply apparatus, for example, when the predicted electric power consumption exceeds a predetermined electric energy. Perform limited demand control. Here, the predetermined power amount is, for example, the contract power amount of the entire building in the demand time period.

  The demand control system according to the first aspect of the invention assigns a capacity suppression level higher than the capacity suppression level allocated to the air conditioner to the hot water supply device mainly in the first time zone. Here, the first time zone is a time zone when the power demand of the air conditioner is large, such as during the daytime in summer. As a result, this demand control system preferentially restricts the power consumption of the hot water supply device mainly in the first time zone, so the comfort of the air-conditioning environment without restricting the power consumption of the air conditioner more than necessary. And the occurrence of loss of comfort can be effectively suppressed.

  Moreover, the demand control system which concerns on 1st invention allocates a capability suppression level higher than the capability suppression level allocated to a hot-water supply apparatus to an air conditioning apparatus mainly in a 2nd time slot | zone. Here, the second time zone is a time zone different from the first time zone, and is a time zone where the power demand of the hot water supply apparatus is large, such as at night. As a result, the demand control system preferentially limits the power consumption of the air conditioner mainly in the second time zone, so that the hot water storage tank of the water heater can be used without restricting the power consumption of the water heater more than necessary. Hot water can be stored in the interior of the hot water supply device, and future hot water outages of the water heater can be effectively suppressed.

  As described above, the demand control system according to the first invention preferentially restricts the power consumption amount of either the air conditioner or the hot water supply device according to the time zone. Can be limited to. Note that this demand control system preferentially limits the power consumption amount of the hot water supply device in a time zone other than the first time zone if the power consumption amount of the hot water supply device is preferentially restricted mainly in the first time zone. Alternatively, if the power consumption of the air conditioner is preferentially restricted mainly in the second time zone, the power consumption of the air conditioner may be preferentially restricted in a time zone other than the second time zone.

  Therefore, the demand control system according to the first aspect of the present invention can effectively suppress the loss of comfort provided by the air conditioner and the occurrence of hot water shortage when the hot water supply device is used.

  A demand control system according to a second invention is the demand control system according to the first invention, further comprising a storage means. A memory | storage means memorize | stores the control conditions which are the conditions which allocate a capability suppression level to an air conditioning apparatus and a hot-water supply apparatus. Moreover, a control means allocates a capability suppression level to an air conditioning apparatus and a hot water supply apparatus based on the control conditions memorize | stored in a memory | storage means.

  The demand control system according to the second aspect of the present invention can assign a capability suppression level based on a predetermined control condition to the air conditioner and the hot water supply device. The control condition is represented in the form of a table (table) in which, for example, the capability suppression levels of the air conditioner and the hot water supply device are set for each time zone. The demand control system limits the amount of power used by the air conditioner and the hot water supply device based on the capability suppression level for each time period set in this table.

  Therefore, the demand control system according to the second aspect of the present invention can more effectively suppress the loss of comfort provided by the air conditioner and the occurrence of running out of hot water when the hot water supply device is used.

  A demand control system according to a third aspect of the present invention is the demand control system according to the second aspect of the present invention, wherein the control condition is a condition in which a capacity suppression level corresponding to the amount of remaining hot water in a hot water storage tank provided in the hot water supply device is allocated to the hot water supply device. is there.

  The demand control system according to the third aspect of the invention assigns a higher capability suppression level to the hot water supply device as the amount of remaining hot water in the hot water storage tank provided in the hot water supply device increases, for example. That is, since a high capacity suppression level is assigned to a hot water supply apparatus that has a large amount of remaining hot water in the hot water storage tank and is unlikely to cause hot water shortage during future use, the power consumption of the hot water supply apparatus is effectively reduced.

  Therefore, the demand control system according to the third aspect of the present invention can more effectively suppress the occurrence of running out of hot water when the hot water supply device is used.

  A demand control system according to a fourth aspect of the present invention is the demand control system according to the second or third aspect of the present invention, wherein the control condition is a condition that assigns a capability suppression level according to the installation location of the air conditioner to the air conditioner. is there.

  In the demand control system according to the fourth aspect of the invention, for example, a low capacity suppression level is assigned to an air conditioner installed in a hotel lobby where it is necessary to suppress the loss of comfort of the air conditioning environment as much as possible. Allocate high capacity suppression levels to air conditioners installed in offices for hotel employees that are not so important. Thereby, the comfort of the air-conditioning environment of the hotel lobby is maintained, and the power consumption of the air conditioner is effectively reduced.

  Therefore, the demand control system according to the fourth aspect of the invention can more effectively suppress the loss of comfort provided by the air conditioner.

  A demand control system according to a fifth aspect of the present invention is the demand control system according to the second to fourth aspects of the present invention, wherein the control object further includes a lighting device. The determining means determines whether or not to suppress the operating ability of the air conditioner, the hot water supply device, and the lighting device based on the predicted power consumption. A memory | storage means memorize | stores the control conditions which are the conditions which allocate a capability suppression level to an air conditioning apparatus, a hot water supply apparatus, and an illuminating device. When the determination unit determines that the operation capability of the air conditioner, the hot water supply device, and the lighting device is suppressed, the control unit controls the air conditioner, the hot water supply device, and the lighting device based on the control condition stored in the storage unit. Assign a capacity suppression level. Moreover, a control means produces | generates the control signal which suppresses the driving | running capability of an air conditioning apparatus, a hot-water supply apparatus, and an illuminating device based on a capability suppression level. The transmission means transmits the control signal generated by the control means to the air conditioner, the hot water supply device, and the lighting device.

  The demand control system according to the fifth aspect of the present invention further includes a lighting device as an object of demand control. In general, the power consumption of the lighting device is larger at night than during the day. That is, for example, by assigning a low capability suppression level to the lighting device at night and assigning a high capability suppression level to the lighting device during the day, the power consumption of the lighting device is effectively reduced.

  Therefore, the demand control system according to the fifth aspect of the present invention effectively reduces the comfort provided by the air conditioner, the occurrence of hot water when using the hot water supply device, and the occurrence of darkness problems when using the lighting device. Can be suppressed.

  A demand control system according to a sixth aspect of the present invention is the demand control system according to the fifth aspect of the present invention, wherein the control condition is a condition for assigning a capacity suppression level according to the installation location of the lighting device to the lighting device.

  The demand control system according to the sixth aspect of the invention assigns a low capability suppression level to, for example, a lighting device installed in a guest room of a hotel where it is necessary to suppress the problem of darkness as much as possible, and has a warehouse with few permanent users. Assign a high capacity suppression level to the lighting equipment installed in Thereby, the comfort of the lighting environment of the hotel guest room is maintained, and the power consumption of the lighting device is effectively reduced.

  Therefore, the demand control system according to the sixth aspect of the present invention can more effectively suppress the occurrence of darkness problems when using the lighting device.

  A demand control system according to a seventh aspect of the present invention is the demand control system according to the first to sixth aspects of the present invention, wherein the first time zone has a large power demand for the air conditioner including daytime in summer and early morning in winter. It is a time zone.

  The daytime in the summer and the early morning in the winter are times when the power demand of the air conditioner is particularly large. That is, a comfortable air-conditioning environment can be maintained by reducing the level of capacity restriction of the air conditioner in the daytime in summer and in the early morning in winter.

  Therefore, the demand control system according to the seventh aspect of the invention can more effectively suppress the loss of comfort provided by the air conditioner.

  A demand control device according to an eighth aspect of the present invention includes a determination unit, a control unit, and a transmission unit. In addition, the control objects of the demand control device according to the eighth invention are an air conditioner and a hot water supply device. The determination means determines whether or not to suppress the operating capabilities of the air conditioner and the hot water supply device based on the predicted power consumption. The predicted power consumption is a predicted value of the power consumption of the air conditioner and the hot water supply device within a predetermined time, or a predicted value of the power consumption of the air conditioner, the hot water supply device, and other electrical equipment within a predetermined time. It is. The determination unit calculates the predicted power consumption based on the information on the power consumption of the air conditioner and the hot water supply device, or the information on the power consumption of the air conditioning device, the water heater, and other electrical equipment. The control unit assigns a capability suppression level to the air conditioner and the hot water supply device when the determination unit determines to suppress the operation capability of the air conditioner and the hot water supply device. The control means assigns a capability suppression level higher than the capability suppression level allocated to the air conditioner to the hot water supply device mainly in the first time zone. The control means assigns a capacity suppression level higher than the capacity suppression level allocated to the hot water supply apparatus to the air conditioner mainly in the second time zone. The second time zone is a time zone different from the first time zone. Moreover, a control means produces | generates the control signal which suppresses the driving capability of an air conditioning apparatus and a hot water supply apparatus based on a capability suppression level. The transmission means transmits the control signal generated by the control means to the air conditioning apparatus and the hot water supply apparatus.

  A demand control apparatus according to an eighth aspect includes a determination unit, a control unit, and a transmission unit that are included in the demand control system according to the first aspect.

  Therefore, the demand control device according to the eighth aspect of the present invention can effectively suppress the loss of comfort provided by the air conditioner and the occurrence of hot water shortage when the hot water supply device is used.

  A demand control apparatus according to a ninth aspect comprises control means and transmission means. Note that the objects to be controlled by the demand control device according to the ninth aspect are an air conditioner and a hot water supply device. The control means assigns a capability suppression level to the air conditioner and the hot water supply device. The control means assigns a capability suppression level higher than the capability suppression level allocated to the air conditioner to the hot water supply device mainly in the first time zone. The control means assigns a capacity suppression level higher than the capacity suppression level allocated to the hot water supply apparatus to the air conditioner mainly in the second time zone. The second time zone is a time zone different from the first time zone. Moreover, a control means produces | generates the control signal which suppresses the driving capability of an air conditioning apparatus and a hot water supply apparatus based on a capability suppression level. The transmission means transmits the control signal generated by the control means to the air conditioning apparatus and the hot water supply apparatus.

  The demand control device is connected to the demand determination device. The demand determination device determines whether or not to suppress the operating capacity of the air conditioner and the hot water supply device based on the predicted power consumption. The predicted power consumption is a predicted value of the power consumption of the air conditioner and the hot water supply device within a predetermined time, or a predicted value of the power consumption of the air conditioner, the hot water supply device, and other electrical equipment within a predetermined time. It is. The demand determination device calculates the predicted power consumption based on the information regarding the power consumption of the air conditioner and the hot water supply device, or the information regarding the power consumption of the air conditioning device, the water heater, and other electrical devices. The control means of the demand control device assigns a capability suppression level to the air conditioner and the hot water supply device when the demand determination device determines that the operation capability of the air conditioner and the hot water supply device is suppressed.

  A demand control apparatus according to a ninth aspect comprises control means and transmission means provided in the demand control system according to the first aspect. This demand control device is connected to an external demand determination device. The demand determination device includes determination means provided in the demand control system according to the first invention.

  Therefore, the demand control device according to the ninth aspect of the present invention can effectively suppress the loss of comfort provided by the air conditioner and the occurrence of hot water shortage during use of the hot water supply device.

  The demand determination device according to the tenth aspect of the present invention determines whether or not to suppress the operating capabilities of the air conditioner and the hot water supply device based on the predicted power consumption. The predicted power consumption is a predicted value of the power consumption of the air conditioner and the hot water supply device within a predetermined time, or a predicted value of the power consumption of the air conditioner, the hot water supply device, and other electrical equipment within a predetermined time. It is. The demand determination device calculates the predicted power consumption based on the information regarding the power consumption of the air conditioner and the hot water supply device, or the information regarding the power consumption of the air conditioning device, the water heater, and other electrical devices.

  The demand determination device is connected to the demand control device. The demand control device includes control means and transmission means. In addition, the control object of a demand control apparatus is an air conditioning apparatus and a hot water supply apparatus. The control means assigns a capability suppression level to the air conditioner and the hot water supply device. The control means assigns a capability suppression level higher than the capability suppression level allocated to the air conditioner to the hot water supply device mainly in the first time zone. The control means assigns a capacity suppression level higher than the capacity suppression level allocated to the hot water supply apparatus to the air conditioner mainly in the second time zone. The second time zone is a time zone different from the first time zone. Moreover, a control means produces | generates the control signal which suppresses the driving capability of an air conditioning apparatus and a hot water supply apparatus based on a capability suppression level. The transmission means transmits the control signal generated by the control means to the air conditioning apparatus and the hot water supply apparatus.

  A demand determination device according to a tenth aspect of the present invention includes a determination unit provided in the demand control system according to the first aspect of the present invention. This demand determination device is connected to an external demand control device. The demand control device includes control means and transmission means provided in the demand control system according to the first invention.

  Therefore, the demand control device using the demand determination device according to the tenth aspect of the invention can effectively suppress the loss of comfort provided by the air conditioner and the occurrence of running out of hot water when the hot water supply device is used. .

  The demand control system according to the first aspect of the present invention can effectively suppress the loss of comfort provided by the air conditioner and the occurrence of running out of hot water when the hot water supply device is used.

  The demand control system according to the second aspect of the present invention can more effectively suppress the loss of comfort provided by the air conditioner and the occurrence of running out of hot water during use of the hot water supply device.

  The demand control system according to the third aspect of the present invention can more effectively suppress the occurrence of running out of hot water when the hot water supply device is used.

  The demand control system according to the fourth aspect of the present invention can more effectively suppress the loss of comfort provided by the air conditioner.

  The demand control system according to the fifth aspect of the present invention effectively reduces the comfort loss provided by the air conditioner, the occurrence of hot water when using the hot water supply device, and the occurrence of darkness problems when using the lighting device. Can be suppressed.

  The demand control system according to the sixth aspect of the present invention can more effectively suppress the occurrence of darkness problems when using the lighting device.

  The demand control system according to the seventh aspect of the present invention can more effectively suppress the loss of comfort provided by the air conditioner.

  The demand control device according to the eighth aspect of the present invention can effectively suppress the loss of comfort provided by the air conditioner and the occurrence of hot water shortage during use of the hot water supply device.

  The demand control device according to the ninth aspect of the present invention can effectively suppress the loss of comfort provided by the air conditioner and the occurrence of hot water shortage during use of the hot water supply device.

  The demand control device using the demand determination device according to the tenth aspect of the invention can effectively suppress the loss of comfort provided by the air conditioner and the occurrence of running out of hot water when the hot water supply device is used.

Configuration diagram of a demand control system according to an embodiment of the present invention Configuration diagram of a demand control apparatus according to an embodiment of the present invention Device information table included in the demand control apparatus according to the embodiment of the present invention Electricity consumption table of the demand control device according to the embodiment of the present invention Basic setting table possessed by demand control apparatus according to an embodiment of the present invention Detailed setting table possessed by demand control apparatus according to an embodiment of the present invention Demand control setting table included in the demand control apparatus according to the embodiment of the present invention Flow chart of demand control processing according to an embodiment of the present invention The flowchart of the control signal generation process included in the flowchart of the demand control process according to the embodiment of the present invention Demand control setting table of a demand control device according to a modification of the embodiment of the present invention

  The demand control system 101 according to the embodiment of the present invention will be described in detail.

<Configuration>
As shown in FIG. 1, the demand control system 101 includes a demand control device 1, an air conditioner group 20, a hot water supply device group 30, a lighting device group 40, and a communication line 90. The air conditioner group 20 includes an air conditioner 20a, an air conditioner 20b, and an air conditioner 20c. The hot water supply device group 30 includes a hot water supply device 30a, a hot water supply device 30b, and a hot water supply device 30c. The lighting device group 40 includes a lighting device 40a, a lighting device 40b, and a lighting device 40c. The demand control device 1 is connected to the air conditioners 20a, 20b, and 20c, the hot water supply devices 30a, 30b, and 30c and the lighting devices 40a, 40b, and 40c via the communication line 90. The air conditioners 20a, 20b, and 20c, the hot water supply devices 30a, 30b, and 30c and the lighting devices 40a, 40b, and 40c are connected to a common power source (not shown). The demand control device 1 is connected to a total power meter (not shown). This total wattmeter is the total use of the air conditioners 20a, 20b, 20c, hot water supply devices 30a, 30b, 30c, lighting devices 40a, 40b, 40c and other electrical devices installed in the hotel during a predetermined time. Measure the amount of power (hereinafter simply referred to as “total power consumption”).

  Hereinafter, the air conditioning device group 20, the hot water supply device group 30, and the lighting device group 40 are appropriately collectively referred to as “electrical device groups 20, 30, 40”. Moreover, each air conditioning apparatus 20a, 20b, 20c, each hot water supply apparatus 30a, 30b, 30c, and each illuminating device 40a, 40b, 40c are named generically as "each electric equipment 20a, ...".

  Here, an outline of demand control processing performed by the demand control system 101 will be described. The demand control device 1 acquires the total power consumption during the elapsed demand calculation time each time a predetermined demand calculation time elapses. Next, the demand control device 1 calculates a predicted value of the total power consumption during a predetermined demand period based on the acquired total power consumption. Next, when the predicted value of the calculated total power consumption exceeds a predetermined power amount (limit power amount described later), the demand control device 1 suppresses the driving ability of each electric device 20a,. Perform demand control to reduce power consumption. In this embodiment, the demand calculation time is 1 minute, and the demand time limit is 30 minutes.

  Hereinafter, each component of the demand control system 101 will be described.

(1) Demand control apparatus As shown in FIG. 2, the demand control apparatus 1 is comprised from the receiving part 2, the memory | storage part 5, the control part 3, the transmission part 4, the input part 6, and the output part 7. Computer. Hereinafter, each component of the demand control apparatus 1 will be described.

(A) Receiving unit The receiving unit 2 receives, from the total power meter, the total power consumption during the elapsed demand calculation time each time the demand calculation time elapses. This total power consumption is the total amount of power actually consumed as a load by each electrical device 20a,... And other electrical devices installed in the hotel during the elapsed demand calculation time. The total power consumption is calculated using the following equation when the voltage is alternating current.

E = Σ (V × I × cos θ × t)
In this equation, E represents the total power consumption, and the unit of E is watt seconds (Ws). V represents the voltage magnitude (100 V in Japan) of each electric device 20a,... And other electric devices, and the unit of V is volts (V). I represents the magnitude of current of each electrical device 20a,... And other electrical devices, and the unit of I is ampere (A). cos θ represents a dimensionless power factor. t represents time, and the unit of t is second (s). As described above, since E represents the total power consumption during the elapsed demand calculation time, that is, the past one minute, the value of t is 60 (s). The symbol Σ represents that the total amount of power used by each electrical device 20a,... And other electrical devices is the total power consumption E.

  Moreover, the receiving part 2 can receive the information regarding the amount of hot water in the hot water storage tank with which each hot water supply apparatus 30a, 30b, 30c is equipped from each hot water supply apparatus 30a, 30b, 30c so that it may mention later.

(B) Storage unit The storage unit 5 includes a RAM, a ROM, a hard disk, and the like, and includes a device information storage unit 21, an electric energy storage unit 22, a basic setting storage unit 23, a detailed setting storage unit 24, and a control method storage unit. 25, a program storage unit 26, and a setting type storage unit 27. Hereinafter, each component of the storage unit 5 will be described.

(B-1) Device Information Storage Unit The device information storage unit 21 stores a device information table T1 shown in FIG. The device information table T1 stores an identification number 311, device type 312, installation position information 313, remaining hot water amount 314, and capacity suppression level 315 for each electric device 20 a.

  The identification number 311 is a numerical value that can uniquely identify each electrical device 20a,. The device type 312 represents the type of each electric device 20a,..., And is any character string selected from the group consisting of “air conditioning device”, “hot water supply device”, and “illumination device”. The installation position information 313 is information regarding a place where the air conditioners 20a, 20b, 20c and the lighting devices 40a, 40b, 40c are installed. The remaining hot water amount 314 is information related to the remaining hot water amount in the hot water storage tank provided in each of the hot water supply devices 30a, 30b, and 30c, received by the receiving unit 2. Specifically, the remaining hot water amount 314 is a value representing a percentage of the amount of hot water stored in the hot water storage tanks provided in the hot water supply devices 30a, 30b, and 30c with respect to a predetermined target water amount, from 0%. It takes values up to 100%. The capability suppression level 315 represents a capability suppression level assigned to each electrical device 20a,..., And is selected from the group consisting of “A”, “B”, “C”, and “D” as will be described later. Any character. Note that “N / A” described in the device information table T1 means that the corresponding data does not exist. In this embodiment, as FIG. 3 shows, air conditioning apparatus 20a, 20b, 20c respond | corresponds to the air conditioning apparatus of identification number 201,202,203, respectively, and hot water supply apparatus 30a, 30b, 30c is respectively The lighting devices 40a, 40b, and 40c correspond to the lighting devices having the identification numbers 401, 402, and 403, respectively.

  In the device information table T1 shown in FIG. 3, the identification number 311 and the device type 312 store predetermined data for each electric device 20a,. In addition, in the installation position information 313, information related to locations where the air conditioners 20a, 20b, and 20c and the lighting devices 40a, 40b, and 40c are installed is stored in advance.

(B-2) Electric energy storage unit The electric energy storage unit 22 stores the total electric energy used. The total power consumption is stored in a total power consumption table T2 shown in FIG. The total power consumption table T2 stores the total power consumption 322T1, 322T2,..., 322T30 every time the demand calculation time elapses from the start time of the demand time limit. For example, 0 minute to 1 minute 322T1 represents the total power consumption from the start time of the demand time period to one minute after the start time of the demand time period. Moreover, 1 minute-2 minutes 322T2 represents the total electric power consumption from 1 minute after the start time of a demand time limit to 2 minutes later. Further, 2 minutes to 3 minutes 322T3 represents the total power consumption from 2 minutes to 3 minutes after the start time of the demand time period. Also, 29 minutes to 30 minutes 322T30 represents the total power consumption from 29 minutes after the start time of the demand time period to the end time of the demand time period. The unit of the total power consumption is watt seconds (Ws).

(B-3) Basic Setting Storage Unit The basic setting storage unit 23 stores a basic setting table T3 shown in FIG. The basic setting table T3 stores the capacity suppression level 332 of the air conditioner group, the capacity suppression level 333 of the hot water supply apparatus group, and the capacity suppression level 334 of the lighting apparatus group for each time zone 331. That is, in the basic setting table T3, the capability suppression level is defined for each time zone and for each device type of the electric device groups 20, 30, and 40. The time zone 331 is one of air conditioning peak, daytime, and nighttime. The air-conditioning peak time is a predetermined time zone when the power demand of the air conditioner group 20 is greatest, for example, in the daytime in summer (for example, from 11 am to 5 pm from June to September) ) Or early morning in winter (for example, from 6 am to 8 am from December to March). The daytime is a daytime period other than the peak time of the air conditioning. For example, it may be a predetermined time period such as from 6:00 am to 8:00 pm, or from sunrise to sunset. Different time zones may be used depending on the date. Nighttime is a time zone at night other than the peak time of air conditioning. For example, it may be a predetermined time zone from 8:00 pm to 6:00 am the next day, or from sunset to sunrise. Depending on the date, it may be a different time zone. The air conditioner group capacity suppression level 332, the hot water supply apparatus group capacity suppression level 333, and the lighting apparatus group capacity suppression level 334 are respectively controlled by the demand control device 1 in the air conditioner group 20, hot water supply apparatus group 30, and illumination apparatus group 40. This represents the degree to which the driving ability is suppressed according to the time zone. Each ability suppression level is represented by any character selected from the group consisting of “A”, “B”, “C”, and “D”, and the degree of suppression of driving ability in the order of A, B, and C. Is expensive. Moreover, the capability suppression level D means that driving capability is not suppressed at all.

  The basic setting table T3 shown in FIG. 5 will be specifically described. At night, the hot water supply device group 30 boils hot water and stores it in the hot water storage tank, so that the demand for the amount of power of the hot water supply device group 30 is large, but the demand for the amount of power of the air conditioner group 20 is smaller than in the daytime. Therefore, at night, the capacity suppression level C is assigned to the hot water supply apparatus group 30 and the capacity suppression level A is allocated to the air conditioner group 20. Conversely, during the daytime, the demand for the amount of power of the air conditioner group 20 is large, but since the hot water supply device group 30 can use hot water boiled and stored at night, the demand for the amount of power of the hot water supply device group 30 is small. Therefore, in the daytime, the capacity restriction level C is assigned to the air conditioner group 20, and the ability restriction level A is assigned to the hot water supply apparatus group 30. And at the time of an air-conditioning peak, since the operation capability of the air conditioning apparatus group 20 should not be suppressed as much as possible, the capacity suppression level D is assigned to the air conditioning apparatus group 20.

(B-4) Detailed Setting Storage Unit The detailed setting storage unit 24 stores a detailed setting table T4 shown in FIG. The detailed setting table T4 stores an operation condition 342 for the air conditioning apparatus group, an operation condition 343 for the hot water supply apparatus group, and an operation condition 344 for the lighting apparatus group for each capacity suppression level 341. Here, in the case of the air conditioners 20a, 20b, and 20c and the lighting devices 40a, 40b, and 40c, the operation conditions relate to the place where the air conditioners 20a, 20b, and 20c and the lighting devices 40a, 40b, and 40c are installed. In the case of the hot water supply devices 30a, 30b, and 30c, the conditions are related to the remaining hot water amount of the hot water supply devices 30a, 30b, and 30c. That is, the detailed setting table T4 defines operating conditions for assigning each capability suppression level for each device type of the electric device groups 20, 30, and 40.

  The detailed setting table T4 shown in FIG. 6 will be specifically described in consideration of the device information table T1 shown in FIG. Since the air conditioner 20a installed in the “lobby” of the hotel needs to maintain a comfortable air-conditioning environment at all times, the capacity suppression level D is assigned. In addition, the air conditioner 20b installed in the “office” of the hotel has no opportunity for outsiders to enter the installation location and does not need to maintain a comfortable air-conditioning environment at all times. B is assigned. Similarly, the lighting device 40c installed in the “lobby” of the hotel needs to be in a state in which the lighting can be always turned on, and therefore the capability suppression level D is assigned. The lighting device 40a installed in the “office room (by the window)” of the hotel is assigned a capability suppression level A because the lighting environment at the installation location is good. Each hot water supply device 30a, 30b, 30c is assigned a higher capability suppression level as the amount of remaining hot water in the hot water storage tank is larger.

  Note that, as will be described later, when the demand control system 101 performs demand control using the demand control device 1, each of the electric devices 20a, ··· is based on either the basic setting table T3 or the detailed setting table T4. Assign a capability suppression level to.

(B-5) Control Method Storage Unit The control method storage unit 25 stores a demand control setting table T5 shown in FIG. The demand control setting table T5 stores an air conditioning apparatus group control method 352, a hot water supply apparatus group control method 353, and a lighting apparatus group control method 354 for each capacity suppression level 351. Here, the control method is a method of suppressing the driving ability of each electric device 20a,. That is, the demand control setting table T5 defines a control method for each electrical device 20a,... To which each capability suppression level is assigned for each device type of the electrical device group 20, 30, 40.

  In the demand control setting table T5 shown in FIG. 7, current consumption is defined as a control method for each electrical device 20a,. The demand control system 101 limits the amount of power used by reducing the current consumption during operation of each electrical device 20a,... As the capability suppression level assigned to each electrical device 20a,. Perform demand control.

(B-6) Program storage unit The program storage unit 26 stores a program for performing demand control.

(B-7) Setting Type Storage Unit The setting type storage unit 27 is used when the demand control system 101 assigns a capability suppression level to each electrical device 20a,... Based on the basic setting table T3, as will be described later. A character string of “basic setting” is stored, and a character string of “detailed setting” is stored when assigning a capability suppression level to each electric device 20a,... Based on the detailed setting table T4.

(C) Control Unit The control unit 3 includes a CPU, and performs arithmetic processing and control processing for performing demand control according to a program stored in the program storage unit 26. The control unit 3 includes a device information update unit 11, a power amount calculation unit 12, a capability suppression level determination unit 13, a control signal generation unit 14, and a demand time limit measurement unit 15. Hereinafter, each component of the control unit 3 will be described.

(C-1) Device Information Update Unit The device information update unit 11 updates the device information table T1 stored in the device information storage unit 21.

(C-2) Electric energy calculator The electric energy calculator 12 calculates a predicted value of the total electric energy consumed during the demand period based on the electric energy table T2 stored in the electric energy storage unit 22. .

(C-3) Capability suppression level determination unit The capability suppression level determination unit 13 is one of the basic setting table T3 stored in the basic setting storage unit 23 and the detailed setting table T4 stored in the detailed setting storage unit 24. Based on one, a capability suppression level is assigned to each electrical device 20a,. The capability suppression level determination unit 13 updates the device information table T1 with the capability suppression level assigned to each electrical device 20a,.

(C-4) Control Signal Generation Unit The control signal generation unit 14 controls the driving ability of each electrical device 20a,... Based on the demand control setting table T5 stored in the control method storage unit 25. Generate a signal. The control signal generation unit 14 stores the generated control signal in the control signal storage unit 25.

(C-5) Demand time period measurement unit The demand time period measurement unit 15 measures the elapsed time from the start time of the demand time period. Further, the demand time limit measuring unit 15 compares the measured elapsed time with the demand calculation time and the demand time limit.

(D) Transmitting Unit The transmitting unit 4 transmits the control signal stored in the control signal storage unit 25 to each electric device 20a,... Via the communication line 90.

(E) Input unit The input unit 6 is an input device such as a keyboard or a mouse, and is used by a user to input information to the demand control device 1. For example, the administrator of the demand control system 101 can set the identification number 311, the device type 312, and the installation position information 313 included in the device information table T 1 using the input unit 6 and the output unit 7 described later.

(F) Output unit The output unit 7 is a display screen such as a liquid crystal display, and displays information in a format that can be easily recognized by the user. For example, the output unit 7 shapes the device information table T1 and displays it on the screen.

(2) Air conditioner The air conditioners 20a, 20b, and 20c are electrical devices for making the air-conditioning environment of a hotel guest room comfortable. Each air conditioner 20a, 20b, 20c is composed of one outdoor unit and a plurality of indoor units. The outdoor unit and each indoor unit are connected by a refrigerant pipe, a power cable, a communication line, and the like. The demand control for each of the air conditioners 20a, 20b, and 20c is performed by gradually reducing the current consumption of the outdoor unit and each indoor unit as the capability suppression level increases.

(3) Hot-water supply apparatus The hot-water supply apparatuses 30a, 30b, and 30c are electrical devices for supplying hot water to hotel rooms and the like. Each of the hot water supply devices 30a, 30b, and 30c includes a hot water storage tank and a hot water amount detection unit. The hot water storage tank stores hot water boiled by each of the hot water supply devices 30a, 30b, and 30c for future use. The hot water amount detection unit detects the remaining hot water amount in the hot water storage tank. The hot water supply devices 30 a, 30 b, and 30 c transmit the detected amount of hot water in the hot water storage tank to the demand control device 1 via the communication line 90. The demand control for each of the hot water supply devices 30a, 30b, and 30c is performed by gradually reducing the current consumption as the capability suppression level increases.

(4) Illumination device The illumination devices 40a, 40b, and 40c are electric devices for providing illumination to hotel rooms and the like. The demand control for each of the lighting devices 40a, 40b, and 40c is performed by gradually reducing the current consumption as the capability suppression level increases.

(5) Communication line The communication line 90 is a medium for bidirectionally transmitting data between the demand control device 1 and each electrical device 20a,. The demand control device 1 transmits a control signal to each electric device 20a,... Via the communication line 90. Further, the demand control device 1 receives the amount of hot water in the hot water storage tank from each of the hot water supply devices 30a, 30b, 30c via the communication line 90. As the communication line 90, for example, a LAN cable is used.

<Operation>
The flow of processing in which the demand control system 101 performs demand control for each electrical device 20a,... Using the demand control device 1 will be described with reference to the flowcharts of FIGS. FIG. 8 is a flowchart showing the overall flow of the demand control process, and FIG. 9 is a flowchart showing the flow of the control signal generation process executed during the demand control process. The setting type storage unit 27 stores in advance a character string of either “basic setting” or “detailed setting”.

(1) Demand Control Process First, the overall flow of the demand control process will be described with reference to FIG.

  In step S101, the demand time limit measuring unit 15 determines whether the demand calculation time has elapsed from the start time of the demand time limit or the elapsed time of the previous demand calculation time. When the demand calculation time has elapsed, the control unit 3 executes step S102. If the demand calculation time has not elapsed, the control unit 3 executes step S101 again.

  In step S102, the device information update unit 11 instructs the receiving unit 2 to receive the total power consumption during the demand calculation time elapsed in step S101 from the total power meter. At the same time, the device information update unit 11 instructs the demand time period measurement unit 15 to measure the elapsed time from the start time of the demand time period. Next, the device information update unit 11 uses the total power consumption received by the reception unit 2 and the elapsed time from the start time of the demand time period measured by the demand time period measurement unit 15 to calculate the power consumption amount table T2. Update. For example, when the elapsed time from the start time of the demand time limit is 3 minutes, the device information update unit 11 receives the data of 2 to 3 minutes 322T3 of the used power amount table T2, and the total used power amount received by the receiving unit 2 Update with data.

  In step S102, the device information updating unit 11 instructs the receiving unit 2 to receive the remaining hot water amount from each of the hot water supply apparatuses 30a, 30b, and 30c. Next, the device information update unit 11 updates the device information table T1 using the remaining hot water amount received by the receiving unit 2. Specifically, the device information update unit 11 searches the identification number 311 column of the device information table T1 for the identification numbers of the hot water supply devices 30a, 30b, and 30c that are scheduled to update the remaining hot water amount data. Next, the device information update unit 11 overwrites the data of the remaining hot water amount 314 included in the row having the searched identification number with the data of the remaining hot water amount received by the receiving unit 2.

  In step S103, the power amount calculation unit 12 predicts the total power consumption from the start time to the end time of the demand period based on the total power consumption for each demand calculation time stored in the power consumption table T2. Calculate the value. For example, the power amount calculation unit 12 calculates a predicted value of the total power consumption during the demand time period by extrapolating the accumulated value of the total power consumption for each demand calculation time up to the present time.

In step S104, the power amount calculation unit 12 calculates a limit power amount. The limit power amount is a predetermined amount of power used when the demand control device 1 determines whether or not to perform demand control. For example, when the contracted power amount of hotels during demand time period (30 minutes) and E _max (Ws), may be used E _max as the limit power amount, a predetermined amount of power lower than E _max E _max - ΔE may be used.

In step S105, the control unit 3 determines whether or not the predicted value of the total power consumption calculated in step S103 exceeds the limit power amount calculated in step S104. When exceeding, the control part 3 performs step S106. If not, the control unit 3 executes step S107.

  In step S106, a control signal generation process to be described later is executed.

  In step S107, the demand time period measuring unit 15 determines whether or not the demand time period has elapsed from the start time of the demand time period. When the demand time limit has elapsed, the control unit 3 ends the demand control process. If the demand time limit has not elapsed, the control unit 3 executes step S101 again.

  When ending the demand control process, the control unit 3 deletes all data of the total power consumption 322T1, 322T2,..., 322T30 stored in the power consumption table T2. Thereafter, the control unit 3 starts the demand control process again.

(2) Control Signal Generation Process Next, the flow of the control signal generation process will be described with reference to FIG.

  In step S201, when the character string stored in the setting type storage unit 27 is “basic setting”, the control unit 3 executes step S202. When the character string stored in the setting type storage unit 27 is “detailed setting”, the control unit 3 executes step S203.

  In step S202, the capability suppression level determination unit 13 assigns a capability suppression level to each electrical device 20a,... Based on the basic setting table T3. Specifically, the capability suppression level determination unit 13 determines, based on the current date and time, which time zone the present day belongs to at the time of air conditioning peak, daytime, and nighttime. Next, the capability suppression level determination unit 13 searches the current time zone from the column of the time zone 331 of the basic setting table T3. Next, the capability suppression level determination part 13 acquires the capability suppression level which should be allocated to the air conditioning apparatus group 20, the hot-water supply apparatus group 30, and the illuminating device group 40 based on the row | line | column which has the searched current time slot | zone. Next, the capability suppression level determination unit 13 updates the data of the capability suppression level 315 of the device information table T1 using the acquired capability suppression level.

  In step S203, the capability suppression level determination unit 13 sets the installation position information of the air conditioners 20a, 20b, and 20c and the lighting devices 40a, 40b, and 40c, and the remaining hot water amount of the hot water supply devices 30a, 30b, and 30c in the device information table T1. Get from.

  In step S204, the capability suppression level determination unit 13 assigns a capability suppression level to each electrical device 20a,... Based on the information acquired in step S203 and the detailed setting table T4. Specifically, the capability suppression level determination unit 13 searches the detailed setting table T4 for the operating conditions of each electrical device 20a,... That the information acquired in step S203 is satisfied. Next, the capability suppression level determination part 13 acquires the capability suppression level which should be allocated to each electric equipment 20a ...... based on the line which has the searched operation conditions. Next, the capability suppression level determination unit 13 updates the data of the capability suppression level 315 of the device information table T1 using the acquired capability suppression level.

  In step S205, the control signal generation unit 14 generates a control signal for each electrical device 20a,... Based on the device information table T1 and the demand control setting table T5. Specifically, the control signal generation unit 14 searches the capability suppression level of each electrical device 20a,... Stored in the device information table T1 from the column of the capability suppression level 351 of the demand control setting table T5. . Next, the control signal generation unit 14 acquires a control method for each of the electric devices 20a,... Based on the row having the searched capability suppression level. Next, the control signal generation unit 14 generates a control signal for suppressing the operation of each electric device 20a,... Based on the acquired control method. Next, the control signal generation unit 14 stores the generated control signal in the control signal storage unit 25.

  In step S206, the control signal generation unit 14 instructs the transmission unit 4 to transmit the control signal stored in the control signal storage unit 25 to each of the electric devices 20a,.

<Features>
The demand control system 101 according to the embodiment of the present invention suppresses the driving ability of each electrical device 20a,... Based on information such as time zone, season, and information on the installation position of each electrical device 20a,. By doing so, the total power consumption can be effectively reduced. The demand control system 101 effectively eliminates the loss of comfort provided by the air conditioner 20, the occurrence of hot water when using the hot water supply device 30, and the occurrence of darkness problems when using the lighting device 40. Can be suppressed.

<Modification>
(1)
Although the demand control system 101 which concerns on embodiment of this invention performs the demand control which suppresses the driving | running capability of air conditioning apparatus 20a, 20b, 20c, hot water supply apparatus 30a, 30b, 30c, and illuminating device 40a, 40b, 40c. Demand control that suppresses the driving ability of other types of electrical equipment may be performed. In this case, the demand control system can reduce the total power consumption more effectively by performing demand control on a plurality of types of electric devices in which the time periods in which the power consumption is peaked do not overlap each other. .

(2)
In the demand control system 101 according to the embodiment of the present invention, the capability suppression level of each electric device 20a,... Is defined in four stages (A to D), but in any number of stages as long as it is a plurality of stages. Also good. For example, when the capability suppression level of each electric device 20a,... Is defined in eight stages (A to H), the demand control system suppresses the driving capability of each electric device 20a,. Can do.

(3)
In the demand control system 101 according to the embodiment of the present invention, in the detailed setting table T4, the capability suppression levels of the air conditioners 20a, 20b, 20c and the lighting devices 40a, 40b, 40c are the air conditioners 20a, 20b, 20c and The lighting devices 40a, 40b, and 40c are assigned according to the installation location. However, the demand control system 101 automatically detects the presence / absence of a user in a place where the air conditioners 20a, 20b, 20c and the lighting devices 40a, 40b, 40c are installed, and is installed in a place where there is no user. A high capability suppression level may be assigned to the air conditioners 20a, 20b, and 20c and the lighting devices 40a, 40b, and 40c. In this case, the demand control system is connected to, for example, an infrared sensor that detects the presence or absence of the user by detecting the body temperature of the user.

(4)
In the demand control system 101 according to the embodiment of the present invention, the capability suppression level of each electrical device 20a,... Is assigned based on either the basic setting table T3 or the detailed setting table T4. Based on the combination of T3 and the detailed setting table T4, the capability suppression level of each electrical device 20a,... May be assigned. For example, the demand control system defines a different detailed setting table for each time zone defined in the basic setting table T3, and based on both the basic setting table and the detailed setting table, the electric devices 20a,. The ability suppression level may be assigned.

(5)
In the demand control system 101 according to the embodiment of the present invention, the demand control setting table T5 is consumed as a control method for each electrical device 20a,... For limiting the amount of power used by each electrical device 20a,. Although the current is defined, a control method other than the current consumption may be defined. For example, the demand control setting table T5 ′ illustrated in FIG. 10 stores a capacity suppression level 351 ′, an air conditioner group capacity 352 ′, a hot water supply apparatus group capacity 353 ′, and a lighting apparatus group control method 354 ′.

  Here, a correction value for the set temperature of the air conditioners 20a, 20b, and 20c is defined in the capacity 352 'of the air conditioner group. For example, “set temperature ± 5 ° C.” means that the air conditioners 20a, 20b, and 20c are operated by increasing the set temperature by 5 ° C. during the cooling operation and by decreasing the set temperature by 5 ° C. during the heating operation. Further, the hot water flow rate is defined as liters per hour (L / h) as the capacity 353 'of the hot water supply device group, and the illuminance is defined as lux (lx) as the control method 354' of the lighting device group. At this time, the control unit 3 further includes a function of calculating the amount of power used by each electrical device 20a,... Based on the demand control setting table T5 '.

(6)
In the demand control system 101 according to the embodiment of the present invention, the demand control setting table T5 defines the current consumption as an absolute value as a control method for each electric device 20a,. Also good. For example, the demand control setting table T5 defines the current consumption of the air conditioners 20a, 20b, and 20c in amperes (A), but the current consumption of the air conditioners 20a, 20b, and 20c at the capability suppression level D. It may be defined as a percentage of current consumption. At this time, the control unit 3 further includes a function of calculating the power consumption amount of each of the air conditioners 20a, 20b, and 20c based on the relative value of the consumption current expressed as a percentage.

(7)
In the demand control system 101 according to the embodiment of the present invention, the demand control setting table T5 defines a control method based on the device type of each electric device 20a,. • A control method may be defined for

(8)
In the demand control system 101 according to the embodiment of the present invention, one value is used as the limit power amount, but a plurality of values may be used. For example, consider a case in which a second limit power amount larger than the first limit power amount and the first limit power amount is used in the demand control process. At this time, the demand control system has a case where the predicted value of the total power consumption is greater than the first limit power amount and less than or equal to the second limit power amount, and a case where the predicted value of the total power consumption is greater than the second limit power amount. And different demand control can be performed. Thereby, the demand control system can suppress the driving capability of each electric equipment 20a, ... in more detail.

(9)
In the demand control system 101 according to the embodiment of the present invention, the demand calculation time is 1 minute and the demand time period is 30 minutes, but other values may be used for the demand calculation time and the demand time period. The shorter the demand calculation time and the longer the demand time period, the more times the control unit 3 acquires the total power consumption during the demand time period. Therefore, the control unit 3 more accurately determines the total power consumption during the demand time period. Can be predicted.

(10)
In the demand control system 101 according to the embodiment of the present invention, predetermined data is stored in advance in the basic setting table T3, the detailed setting table T4, and the demand control setting tables T5 and T5 ′. May be stored using the input unit 6. For example, the user of the demand control system uses the input unit 6 to input the operating condition 342 of the air conditioner group to the detailed setting table T4, so that the operating condition for assigning the capacity suppression level to the air conditioner group 20 Can be changed.

  The demand control system according to the present invention is useful for effectively limiting the amount of power used by a plurality of types of equipment installed in a building.

DESCRIPTION OF SYMBOLS 1,101 Demand control apparatus 102 Demand judgment apparatus 2 Judgment means 3 Control means 4 Transmission means 5 Storage means 20 Air conditioning apparatus 30 Hot water supply apparatus 40 Illumination apparatus

JP 2008-017665 A

Claims (10)

Based on information on the amount of power used by the air conditioner (20a,...) And the hot water supply device (30a,...), Or information on the amount of power used by the air conditioner, the water heater, and other electrical devices. The predicted value of the power consumption of the air conditioner and the hot water supply device within a predetermined time, or the prediction of the power consumption of the air conditioning device, the hot water supply device and the other electrical equipment within a predetermined time. A determination unit (2) that calculates a predicted power consumption that is a value and determines whether or not to suppress the operating capacity of the air conditioner and the hot water supply device based on the predicted power consumption;
When the determination means determines that the operation capacity of the air conditioner and the hot water supply apparatus is to be suppressed, a capacity suppression level is assigned to the air conditioner and the hot water supply apparatus, and the air is controlled based on the capacity suppression level. Control means (3) for generating a control signal for suppressing the operating capacity of the harmony device and the hot water supply device;
A transmission means (4) for transmitting the control signal generated by the control means to the air conditioner and the hot water supply device;
With
The control means assigns the capacity suppression level higher than the capacity suppression level allocated to the air conditioner to the hot water supply device mainly in a first time zone, and mainly a second time different from the first time zone. In the belt, the capacity suppression level higher than the capacity suppression level allocated to the hot water supply device is allocated to the air conditioner.
Demand control system. A storage unit (5) for storing a control condition that is a condition for assigning the capacity suppression level to the air conditioner and the hot water supply device;
The control means assigns the capacity suppression level to the air conditioner and the hot water supply device based on the control condition stored in the storage means.
The demand control system according to claim 1. The control condition is a condition for allocating the capacity suppression level according to the amount of remaining hot water in a hot water storage tank provided in the hot water supply device to the hot water supply device.
The demand control system according to claim 2. The control condition is a condition for assigning the capacity suppression level according to the installation location of the air conditioner to the air conditioner.
The demand control system according to claim 2 or 3. The other electric device includes a lighting device (40a, ...),
The determination means determines whether or not to suppress the operating capacity of the air conditioner, the hot water supply device, and the lighting device based on the predicted power consumption,
The storage means stores the control condition, which is a condition for assigning the capacity suppression level to the air conditioner, the hot water supply device, and the lighting device,
The control means, based on the control condition stored in the storage means, when the determination means determines that the operation capacity of the air conditioning apparatus, the hot water supply apparatus, and the lighting apparatus is to be suppressed, Assigning the capability suppression level to the apparatus, the hot water supply device, and the lighting device, and generating the control signal for suppressing the operating capability of the air conditioning device, the hot water supply device, and the lighting device based on the capability suppression level. ,
The transmission means transmits the control signal generated by the control means to the air conditioning apparatus, the hot water supply apparatus, and the lighting apparatus.
The demand control system according to any one of claims 2 to 4. The control condition is a condition for assigning the capability suppression level according to an installation location of the lighting device to the lighting device.
The demand control system according to claim 5. The first time zone is a time zone in which the power demand of the air conditioner is high, including daytime in summer and early morning in winter.
The demand control system according to claim 1. Based on information on the amount of power used by the air conditioner (20a,...) And the hot water supply device (30a,...), Or information on the amount of power used by the air conditioner, the water heater, and other electrical devices. The predicted value of the power consumption of the air conditioner and the hot water supply device within a predetermined time, or the prediction of the power consumption of the air conditioning device, the hot water supply device and the other electrical equipment within a predetermined time. A determination unit (2) that calculates a predicted power consumption that is a value and determines whether or not to suppress the operating capacity of the air conditioner and the hot water supply device based on the predicted power consumption;
When the determination means determines that the operation capacity of the air conditioner and the hot water supply apparatus is to be suppressed, a capacity suppression level is assigned to the air conditioner and the hot water supply apparatus, and the air is controlled based on the capacity suppression level. Control means (3) for generating a control signal for suppressing the operating capacity of the harmony device and the hot water supply device;
A transmission means (4) for transmitting the control signal generated by the control means to the air conditioner and the hot water supply device;
With
The control means assigns the capacity suppression level higher than the capacity suppression level allocated to the air conditioner to the hot water supply device mainly in a first time zone, and mainly a second time different from the first time zone. In the belt, the capacity suppression level higher than the capacity suppression level allocated to the hot water supply device is allocated to the air conditioner.
Demand control device (1). In the first time zone, the capability suppression level higher than the capability suppression level allocated to the air conditioner (20a,...) Is allocated to the hot water supply device (30a,...), And mainly in the first time zone. In the second time zone different from the above, the capability suppression level higher than the capability suppression level allocated to the hot water supply device is allocated to the air conditioner, and the air conditioner and the hot water supply device are based on the capability suppression level. Control means (3) for generating a control signal for suppressing the driving ability of
A transmission means (4) for transmitting the control signal generated by the control means to the air conditioner and the hot water supply device;
A demand control device (101) comprising:
When the demand determination device (102) connected to the demand control device determines that the operation capability of the air conditioner and the hot water supply device is to be suppressed, the control means has a capability for the air conditioner and the hot water supply device. Assign a suppression level,
The demand determination device is based on information on the power consumption of the air conditioner and the hot water supply device, or information on the power consumption of the air conditioning device, the hot water supply device, and other electric devices within a predetermined time. Predicted electric power used by the air conditioner and the hot water supply device in the above, or predicted electric power used that is a predicted value of the electric energy used by the air conditioner, the hot water supply device, and the other electric device within a predetermined time Calculating an amount, and determining whether or not to suppress the operating capacity of the air conditioner and the hot water supply device based on the predicted power consumption.
Demand control device. Based on information on the amount of power used by the air conditioner (20a,...) And the hot water supply device (30a,...), Or information on the amount of power used by the air conditioner, the water heater, and other electrical devices. The predicted value of the power consumption of the air conditioner and the hot water supply device within a predetermined time, or the prediction of the power consumption of the air conditioning device, the hot water supply device and the other electrical equipment within a predetermined time. A demand determination device (102) that calculates a predicted power consumption that is a value and determines whether or not to suppress the operating capacity of the air conditioner and the hot water supply device based on the predicted power consumption. And
The demand determination device is connected to a demand control device (101),
When the demand determination device determines that the demand determination device suppresses the operation capability of the air conditioner and the hot water supply device, the demand control device mainly exceeds a capability suppression level assigned to the air conditioner in the first time zone. While assigning a high capability suppression level to the hot water supply device, the air conditioning device assigns the capability suppression level higher than the capability suppression level allocated to the hot water supply device mainly in a second time zone different from the first time zone. And a control means (3) for generating a control signal for suppressing the operating capacity of the air conditioner and the hot water supply device based on the capacity suppression level,
Transmission means (4) for transmitting the control signal generated by the control means to the air conditioner and the hot water supply device,
Demand judgment device.

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