JP6879638B2 - Power regulation system - Google Patents

Description

The present invention relates to a power adjustment system, and in particular, when the power of each device such as an elevator, an air conditioner, or a lamp installed in each business establishment or home is turned on, the power is adjusted to supply power in a predetermined area. It relates to a power adjustment system that efficiently performs and contributes to reduction of power consumption.

Today, the stable supply of electricity is an extremely important issue. However, the amount of electricity consumed in various production plants, offices, and households is not constant. It varies with time or season. For example, during the summer daytime, cooling maximizes electricity demand. Moreover, even in ordinary households, the electricity demand fluctuates during the day. However, the standard for setting the electricity rate is set based on the maximum peak electricity. Therefore, even in a business establishment that does not use a large amount of electricity at all times, if the peak value of electricity demand is large, the electricity rate will be high.

Conventionally, electricity has been saved by stopping the use of unused lamps and air conditioners, but the basic charge will not decrease unless the peak value is lowered. On the other hand, the environment in which a communication line such as the Internet is used today has become extremely good, and for example, it is possible to set an IP address for each device disclosed in Patent Document 1 and perform power control.

Special table 2005-510122

In the present invention, when the power of a so-called power consuming device such as an air conditioner or an elevator is turned on, the peak power in a predetermined area where the power consuming device is installed is calculated, and the power consuming device itself determines and turns on the power. , Prevents power consumption exceeding the peak value within a predetermined area, and performs efficient power adjustment. Further, a power consuming device such as an air conditioner or an elevator notifies a server that manages power in a predetermined area, turns on the power according to a response from the server, and similarly efficiently adjusts power.

According to the present invention , the above-mentioned problem is a power adjustment system in a plurality of power consuming devices installed in a predetermined area including a plurality of business establishments, and the power consuming device is in a preset predetermined area. A first storage means for storing the peak value of the power, and a second storage means for storing the initial power and the rated power for each of the plurality of power consuming devices and storing the level of importance for each of the power consuming devices. When the initial power of the power consuming device is added to the total power currently used in the predetermined area when the power consuming device is instructed to turn on the power, whether or not the peak value is exceeded is determined. Judging, if the peak value is not exceeded, the power consuming device is instructed to turn on the power, and if the peak value is exceeded, first refer to the level of importance for each device stored in the second storage means. Then, when a device having a low importance level is instructed to stop the power supply and the device instructing the power stop is notified of the stoppage, it is determined whether or not the peak value is exceeded again, and the peak value is determined. If the power is not exceeded, the power consuming device is instructed to turn on the power, and if there is no notification from the device that received the instruction to stop the power even after waiting for a certain period of time, the device with the next lowest level of importance is turned off. This can be achieved by providing a power regulation system that makes the request.

According to the present invention, when power is turned on to an individual power consuming device, for example, an elevator or an air conditioner, the power consuming device itself enables control for efficient power adjustment, reducing power charges and improving efficiency. A good power regulation system can be provided.

It is a system block diagram of the power adjustment system of 1st Embodiment. It is a figure which shows the structure of the power-source control part. It is a figure explaining the structure of the database (DB) built in the storage device. It is a flowchart explaining the processing operation of 1st Embodiment. It is a flowchart explaining the processing operation of 1st Embodiment. It is a system block diagram of the power adjustment system of 2nd Embodiment. It is a figure which shows the structure of the power consumption device, (a) is the whole view of the power consumption device, (b) is the figure which shows the structure of the power-source control part in a power consumption device. It is a flowchart explaining the processing operation of 2nd Embodiment. It is a flowchart explaining the processing operation of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First Embodiment)
FIG. 1 is a system configuration diagram of the power adjustment system of the present embodiment. In this embodiment, individual devices used for the power adjustment system in the predetermined area 2 including a plurality of business establishments 1-1, 1-2, ... Will be described.

For example, five air conditioners A1 to A5, three elevators E1 to E3, and a plurality of electric lamps L1 to Ln are installed in the office 1-1, and power is supplied from the power supply unit 3, respectively. A plurality of office devices such as printers, facsimiles, and personal computers (not shown) are also used in the business establishment 1-1, and power is similarly supplied from the power supply unit 3-1.

Further, the air conditioners A1 to A5, the elevators E1 to E3, and the plurality of lamps L1 to Ln are connected to the power supply control unit 4-1 via a communication line, and the power supply control unit 4-1 is connected to the storage unit 5 described later. -1 is connected.

As shown in FIG. 1, the predetermined area 2 of this example includes business establishments 1-2, 1-3, ... In addition to business establishments 1-1, and the same applies to, for example, business establishments 1-2. Multiple air conditioners A, elevators E, lamps L, and other devices are installed in the office, and power is supplied from the power supply units 3-2, 3-3, etc. corresponding to each device, and communication lines are provided. It is connected to the power supply control units 4-2, 4-3, ...

FIG. 2 is a diagram showing the configuration of power supply control units 4-1 and 4-2, ... (Hereinafter, represented by No. 4). In the figure, the power supply control unit 4 is composed of a CPU 6, a ROM 7, a RAM 8 and the like, performs processing according to a program stored in the ROM 7, and accesses a recording device 5 connected to the power supply control unit 4 as needed. The display 9 shows the necessary information.
The system control of this example is executed according to the program stored in the ROM 7, but as shown in the figure, the recording medium 10 (b) required for the media driver 10 (a) installed in the power supply control unit 4 is used. The program may be mounted and used by reading the program from the recording medium 10 (b).

FIG. 3 is a diagram illustrating a configuration of a database (DB) constructed in the recording device 5. In the figure, the device name, the initial power when starting the device, and the rated power are registered in the database, and the level information indicating the importance of the device is also registered. An IP address is also registered in the device name.

For example, the elevator E1 installed in the office 1-1 is a luggage elevator, and as described above, the initial power is 30 KW and the rated power is 15 KW. Further, this elevator E1 is for luggage, the importance level is set to "3", and the specific information of the IP address is also stored. In addition, the elevator E2 is for employees, the initial power is 20 KW, the rated power is 10 KW, the importance level is set to "1", and the specific information of the IP address is also stored as described above. There is. Hereinafter, the elevator E3, the air conditioners A1 to A5, the electric lamp, and the like are also as described in the database of the figure.

The power of the air conditioners A1 to A5, elevators E1 to E3, and the like is turned on / off manually or manually, but it is also possible to turn on / off using a LAN board or the like. The LAN board is also controlled by the power supply control unit 4.
As described above, the predetermined area 2 includes business establishments 1-2, 1-3, ... In addition to business establishments 1-1, other business establishments 1-2, 1-3, ..., etc. The database (DB) built in the power supply control unit 4 and the recording device 5 of the above is also set in the same manner.

In the above configuration, the processing operation of this example will be described below.
FIG. 4 is a flowchart illustrating the processing operation of this example. The left side of the flowchart shown in the figure shows the processing operations of the air conditioners A1 to A5, the elevators E1 to E3 and other power-consuming devices and the device side (power consumption device side), and the right side is the power supply control unit of the business establishment. The processing operation of No. 4 is shown.

On the side of the above-mentioned device or device (hereinafter, indicated by a power consuming device), first wait for an instruction to turn on the power (step (hereinafter, indicated by S) 1). In the following description, for example, as an electric power consuming device installed in the business establishment 1-1, an example of the air conditioner A1 will be described.
As described above, the air conditioner A1 which is a power consuming device waits for an instruction to turn on the power, and determines whether there is an instruction to turn on the power at all times (S2). Here, when there is an instruction to turn on the power of the air conditioner A1 manually or by operating the remote controller (YES in S2), the power on confirmation signal is transmitted from the air conditioner A1 to the power control unit 4 (S3).

The power control unit 4 side constantly calculates the total amount of current power consumption (step (hereinafter, ST) 1), waits for the power-on confirmation signal from the air conditioner A1 to be received (ST2), and receives this signal. Then (ST3 is YES), it is investigated from which power consumption device the power-on confirmation signal is input (ST4). In this example, the power-on confirmation signal is transmitted from the air conditioner A1 as described above, and it is determined that the power-on confirmation signal is transmitted from the air conditioner A1, and the power control unit 4 determines that the power-on confirmation signal is transmitted, and the power control unit 4 is recorded device (DB) 5- The initial power of the air conditioner A1 is read from 1 (ST5). Specifically, the data of the initial power of 2 KW stored in the recording device 5-1 (DB) shown in FIG. 3 described above is read out (ST5).

The power supply control unit 4 further adds the above initial power to the total amount of power used in the current office 1-1 (ST6), and determines whether the total amount of the added power consumption exceeds the peak power (ST7). .. Here, if the peak value is not exceeded (ST7 is NO), a power-on instruction signal is transmitted to the air conditioner A (ST8).

The air conditioner A1 (power consuming device) side is waiting for an instruction from the power supply control unit 4 as described above (S4), and when a power-on instruction signal is input from the power supply control unit 4 (S5 is YES), the air conditioner A1 Turn on the power (S6). That is, the person who instructed the power-on of the air conditioner A1 manually or by the remote controller waits for the air conditioner A1 to actually be turned on after the power is turned on, and then inputs the power-on instruction signal from the power control unit 4 to the air conditioner A1. The power is automatically turned on.

Therefore, by controlling in this way, it is possible to turn on the power of the air conditioner A1 after confirming that the power consumption of the business establishment 1-1 does not exceed the peak value. In addition, in order to eliminate the discomfort due to the time lag until the person who instructed to turn on the power of the air conditioner A1 actually turns on the power, for example, a display is provided on the air conditioner A1 to display "Power is being confirmed" or the like. You may. Further, when the power is turned on using the remote controller, for example, the above display may be performed on a display provided on the remote controller.

On the other hand, when the added value exceeds the peak value (ST7 is YES), the drive stop processing of any of the power consuming devices is performed. In this case, first, the recording device 5-1 (DB) is searched, and the device with the lowest importance is selected (ST9 shown in FIG. 5). For example, in the example shown in FIG. 3 described above, the elevator E1 having an importance level of "3" is selected.

Next, the rated power of the selected device is read out and subtracted from the total amount of power currently used (ST10). Specifically, the rated power of 15 KW of the elevator E1 stored in the recording device (DB) 8 is subtracted. Then, it is determined whether the subtraction result exceeds the peak value (S11), and if the subtraction result is equal to or less than the peak value (NO in S11), the drive of the power consuming device (elevator E1) is stopped (S12). However, in this case, in the drive stop process of the power consuming device, for example, if the elevator E1 is currently moving, the drive is stopped after the work is completed. After that, a power-on instruction signal is transmitted to the air conditioner A1 which is a power consuming device to be newly driven (ST13).

The air conditioner A1 (power consuming device) is waiting for an instruction from the power control unit 4 (S7), and when a power on instruction signal is input from the power control unit 4 (S7 is YES), the power of the air conditioner A1 is turned on. Do (S8). That is, as described above, the person who instructed the power-on of the air conditioner A1 manually or by the remote controller waits for the air conditioner A1 to be actually turned on after the power is turned on, and the power-on instruction signal from the power control unit 4 The power of the air conditioner A1 is automatically turned on by the input of.
Therefore, in this case as well, the power of the air conditioner A1 can be turned on after confirming that the power consumption of the business establishment 1-1 does not exceed the peak value.

On the other hand, if the subtraction result is still equal to or higher than the peak value (YES in S11), the device having the next lowest importance level is processed (ST14). In the example shown in FIG. 3, the device to be searched next is the air conditioner A2 having the importance level “2”, and the above processing is repeated thereafter.
In the above description, the power-on of the air conditioner A1 has been described as the power consumption device, but other air conditioners, elevators, and electric lamps can be similarly implemented. Further, although the power consuming device (air conditioner A1) in the business establishment 1-1 has been described, the power consuming device in the other business establishments 1-2, 1-3, ... Can be similarly implemented.

As described above, according to the process of the present embodiment, when the power of the power consuming device is newly turned on, the power consuming device may transmit a power on confirmation signal to the power supply control unit 4, and then the power supply control unit 4 By waiting for the instruction from the device and actually turning on the power to the device, the power consumption does not exceed the peak value in the business establishment 1 or the area 2 including a plurality of business establishments, and the power consumption is reduced. Efficient operation can be performed.
(Second embodiment)

Next, a second embodiment of the present invention will be described.
In this example, power consumption devices such as air conditioners and elevators installed in a predetermined area including multiple business establishments acquire power consumption information from other power consumption devices in the same area to determine power on. It is an invention that performs power adjustment. Hereinafter, a specific description will be given.

FIG. 6 is a diagram showing a configuration of a power adjustment system used in the present embodiment. Also in this example, individual devices used for the power adjustment system in the predetermined area 12 including a plurality of business establishments 11-1 to 11-n will be described. Therefore, as described above, a plurality of air conditioners A1, A2, ..., A plurality of elevators E1, E2, ..., And a plurality of lamps L1, L2, ... Are installed in the office 11-1, and power is supplied to each of them. Power is supplied from the unit 13. Further, a plurality of office devices such as a printer, a facsimile, and a personal computer (not shown) are also used in the business establishment 11-1, and power is supplied from the power supply unit 13-1.

Further, as shown in the figure, the predetermined area of this example includes the establishments 11-2, 11-3, ... In addition to the establishment 11-1, for example, the establishment 11-2 is also similarly included. A plurality of air conditioners A, elevators E, lamps L, and other devices are installed in the office, and power is supplied to each device from the power supply units 13-2, 13-3, and so on. The following business establishments 11-3, 11-4, ... Have the same configuration.

Further, in the power adjustment system of this example, the power supply control unit used in the first embodiment described above is not installed, and individual power consumption devices, that is, areas 12 (business establishments 11-1, 11-2) are not installed. The individual power consumption devices such as the air conditioner A (A1, A2, ...), the elevator E (E1, E2, ...), and the lamp L (L1, L2, ...) Installed in the) are the same. Information on power consumption is acquired from other power consumption devices in the area 12, a power-on decision is made, and power adjustment is performed. For this reason, each power consuming device is provided with a power supply control unit to determine whether to turn on the power.

FIG. 7A is a diagram showing an example of, for example, an air conditioner A (A1) as a power consumption device. As shown in the figure, the air conditioner A1 includes a main body 16, a power supply control unit 17, and a display 18. The main body 16 is provided with a filter, a cold / warm air outlet, and the like, and various displays are displayed on the display 18, for example, "power is being confirmed" after the power is turned on.

The power supply control unit 17 acquires power consumption information from other power consumption devices in the area 12 and determines whether to turn on the power. FIG. (B) is a diagram showing a specific configuration of the power supply control unit 17, which is a transmission / reception unit 19, a control unit 20, a power supply instruction switch 21, a power calculation unit 22, a power peak value storage unit 23, and a level storage unit. It is composed of 24. The power instruction switch 21 is a switch that gives an instruction to turn on the power. For example, the control unit 20 is provided on a remote controller (not shown), and when the power instruction switch 21 is operated, the power in the same area 12 is supplied via the transmission / reception unit 19. A signal is sent to the consumption device, that is, another air conditioner A installed in the area 12, an elevator E, a lamp L, or the like, and power usage information to be used is acquired from the air conditioner A, the elevator E, the lamp L, or the like.

When the control unit 20 receives the power consumption information from the other air conditioner A, the elevator E, the lamp L, etc. in the area 12, the control unit 20 transmits the information to the calculation unit 22. The electric power calculation unit 22 calculates the total electric power input from the air conditioner A and the elevator E. Then, the control unit 20 acquires the total value of the electric power calculated by the electric power calculation unit 22, compares it with the peak electric power stored in the electric power peak value storage unit 23, and determines whether to turn on the power to the air conditioner A1 based on the comparison result. I do. Further, the level storage unit 24 stores information based on the importance of the power consuming device in the area 12, and the control unit 20 adjusts the power according to the importance stored in the level storage unit 24 as described later.

In the above configuration, the processing operation of this example will be described below.
FIG. 8 is a flowchart illustrating the processing operation of this example. First, it waits for a power-on instruction of the power consuming device (step (hereinafter, indicated by STP) 1). The power-on instruction is the power-on instruction switch 21, and waits for a signal transmitted from, for example, a remote controller (not shown).

After that, when the power supply instruction switch 21 is operated (STP2 is YES), the control unit 20 receives the air conditioner A (A1, A2) in another power consuming device in the same area 12 from the transmission / reception unit 19, for example, the office 11-1. , ...), elevator E (E1, E2, ...), lamp L (L1, L2, ...), and air conditioner A in the same area of other offices 11-2, 11-3, ..., etc. , Elevator E, lamp L, etc. are requested to transmit power consumption information (STP3). Then, it waits for the information input of the power consumption from another power consuming device (STP4).

After that, when the power consumption information is input from another power consuming device in the area 12 (STP5 is YES), the control unit 20 sends the input power consumption information to the power calculation unit 22 (STP6), and further other power. Wait for the power consumption information input from the consumer device. For example, when the information on the power consumption currently used in the elevator is received from the elevator E1 of the same business establishment 11-1, this information is sent to the power calculation unit 22. On the other hand, when the information on the power consumption currently used by the lamp is received from the lamp L of the business establishment 11-2, this information is also sent to the power calculation unit 22. In this way, the power consumption information in the area 12 is sequentially input to the power calculation unit 22, and the power calculation unit 22 sequentially performs the addition process.

After that, it is determined whether the power consumption information has been input from all the power consumption devices in the area 12 (STP7), and if the power consumption information from all the power consumption devices has not been input yet (STP7 is NO), Furthermore, it waits for the information input of the power consumption from another power consuming device (STP4 to → STP7 is NO).

After that, when the information input of the power consumption from all the power consumption devices in the area 12 is completed (STP 7 is YES), the power calculation unit 22 calculates the total value of the power consumption (STP 8). The control unit 20 reads the power peak value information from the power peak value storage unit 23 and compares it with the total power consumption value calculated by the power calculation unit 22 (STP9 in FIG. 9). Then, it is determined whether the total value of the used power exceeds the peak power (STP10), and if the total value of the used power does not exceed the peak power (STP10 is NO), the power of the air conditioner A1 is turned on (STP11).

Even by controlling in this way, the power consumption in the area 12 does not exceed the peak value, and the power of the air conditioner A1 can be safely turned on. Further, according to the control of this example, it is not necessary to perform power control for each business establishment as in the first embodiment described above, and the power consumption device (air conditioner A1) itself can control the power consumption, and the business establishments can control the power. The control for each can be omitted.

On the other hand, in the above judgment (STP10), if the total value of the used power exceeds the peak power (STP10 is YES), if the power of the air conditioner A1 is turned on immediately, the peak power of the entire system in the area 12 will be exceeded. Wait for the power-on instruction (STP12). Then, the control unit 20 reads the level information from the level storage unit 24 (STP13).

As described above, the level storage unit 24 stores the importance level of each device (power consuming device), and requests the lowest level (lowest importance) device to stop the power supply. (STP14), and then wait for reception from the device (STP15). Then, when the device notifies that the power supply is stopped (STP16 is YES), the power of the air conditioner A1 is turned on (STP17).

By controlling in this way, the power of the air conditioner A1 can be safely turned on without exceeding the peak value of the power consumption in the area 12. If there is no notification from the device even after waiting for a certain period of time, for example, the next lower level device may be requested to stop the power supply. Hereinafter, the same process is repeated.

By controlling as described above, the power consumption device (air conditioner A1) itself can adjust the power, and further, not only the air conditioner A1 but also other power consumption devices such as elevators E1, E2, ..., Electric lamps. Similar power control can be performed for L1, L2, ....

1-1, 1-2, ・ ・ Business office 2 ・ ・ ・ Area 3-1, 3-2, ・ ・ Power supply unit 4-1 and 4-2, ・ ・ Power control unit 5-1, 5-2 , ・ ・ Storage device 6 ・ ・ CPU
7 ... ROM
8 ... RAM
9 ... Display 10 (a) ... Media driver 10 (b) ... Recording media 11, 11-1, 11-2 ... Office 12 ... Area 13-1, 13-2, ... Power supply unit A, A1, A2, ... Air conditioner E, E1, E2, ... Elevator L, L1, L2, ... Electric light

Claims (2)

It is a power adjustment system in multiple power consumption devices installed in a predetermined area including multiple business establishments.
The power consuming device stores a first storage means for storing a preset peak value of power in the predetermined area, and initial power and rated power for each of the plurality of power consuming devices, and stores the power consuming device. It is equipped with a second storage means that stores the level of importance for each.
When the power consuming device is instructed to turn on the power, when the initial power of the power consuming device is added to the total power currently used in the predetermined area, it is determined whether or not the peak value is exceeded.
When the peak value is not exceeded, the power consuming device is instructed to turn on the power, and the power is turned on.
When the peak value is exceeded, the importance level is first referred to for each device stored in the second storage means, the device having a low importance level is instructed to stop the power supply, and the power stop instruction is given. When the device that performed the operation notifies the stop, it is determined again whether or not the peak value is exceeded, and if the peak value is not exceeded, the power consuming device is instructed to turn on the power.
A power adjustment system characterized in that if there is no notification from the device that has been instructed to stop the power supply even after waiting for a certain period of time, the device having the next lowest level of importance is requested to stop the power supply. The power adjustment system according to claim 1, wherein the predetermined area includes a plurality of business establishments, and the power consumption device includes an air conditioner, an elevator, and an electric lamp.

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