JP5683727B2 - Building power management apparatus, building power management system, tenant power management system, building power management method, and program - Google Patents

Description

  The present invention relates to a building power management apparatus, a building power management system, a tenant power management system, a building power management method, and a program for managing a power limit of a tenant in a building where a plurality of tenants occupy.

  As a system for managing power consumption in a plurality of properties, for example, in Patent Document 1, when there is a possibility of exceeding a predetermined power amount such as contract power, the facilities of each property such as an air conditioning system and a lighting system A system that suppresses excess power consumption by controlling to stop or stop the capability of a device is disclosed.

  Further, for example, Patent Document 2 discloses a system for managing power consumption in an entire building group composed of a plurality of buildings, in which the total power consumption amount of each building is contracted for the entire building group. A system is disclosed that issues a control command to the building management system of each building to suppress the use of power when it is likely to exceed the limit.

JP 2002-10532 A JP 2001-338036 A

  However, the systems disclosed in Patent Document 1 and Patent Document 2 control to suppress the power consumption when the power consumption of the entire property or the entire building group is likely to exceed a predetermined amount of power. . Therefore, in the systems disclosed in Patent Document 1 and Patent Document 2, in a complex building where tenants of various business forms with different power consumption amounts depending on time of day or day, the amount of power exceeding the limit power amount imposed on the tenant is exceeded. It is difficult to perform power management according to the tenant's power demand, such as wanting to use the amount of power.

  The present invention has been made in view of the above circumstances, and provides a building power management apparatus and the like that can manage the power of the entire building according to the power demand of the tenant in a building where a plurality of tenants occupy. The purpose is to do.

In order to achieve the above object, the building power management apparatus of the present invention provides:
In a building where a plurality of tenants occupy, a building power management device that manages the power limit of the tenant,
Building power consumption prediction means for predicting the power consumption of the building in a predetermined period in the future;
Tenant limit power for acquiring the tenant limit power amount for the tenant in the future predetermined period for each tenant based on the power consumption amount predicted by the building power consumption prediction means and the predetermined limit power amount of the building Acquisition means;
Surplus power acquisition means for acquiring surplus power amount of the building in the future predetermined period based on the predetermined limit power amount of the building and the power consumption amount predicted by the building power consumption prediction means; Prepared,
Buy and sell the surplus power,
It is characterized by that.

  ADVANTAGE OF THE INVENTION According to this invention, in the building where a several tenant moves in, the electric power of the whole building can be managed according to the electric power demand of a tenant.

It is a figure which shows the structure of the building power management system which concerns on Embodiment 1. FIG. It is a block diagram which shows the structure of the building power management apparatus which concerns on Embodiment 1. FIG. It is a figure which shows an example of tenant power limit information. It is a figure for demonstrating an example of the acquisition method of surplus electric energy. It is a figure which shows an example of surplus electric power information. It is a block diagram which shows the structure of the terminal device which concerns on Embodiment 1. FIG. It is a figure which shows an example of purchase wish information. It is a flowchart which shows the flow of the building power management process which concerns on Embodiment 1. FIG. It is a figure which shows an example of surplus electric power information and the purchase wish information received from terminal device 5a-5c. It is a figure which shows an example of surplus electric power information and sale electric power information transmitted to the terminal devices 5a-5c. It is a figure which shows an example of the tenant power limit information after an update. 4 is a flowchart illustrating a flow of power purchase processing according to the first embodiment. It is a block diagram which shows the structure of the terminal device which concerns on Embodiment 2. FIG. It is a figure which shows an example of surplus electric power information. It is a block diagram which shows the structure of the building power management apparatus which concerns on Embodiment 2. FIG. It is a flowchart which shows the flow of the building electric power management process which concerns on Embodiment 2. FIG. 6 is a flowchart illustrating a flow of power sale processing according to the second embodiment. It is a block diagram which shows the structure of the terminal device which concerns on Embodiment 3. FIG. It is a block diagram which shows the structure of the building power management apparatus which concerns on Embodiment 3. FIG. It is a block diagram which shows the structure of the building power management apparatus which concerns on Embodiment 4. FIG. It is a block diagram which shows the structure of the building power management apparatus which concerns on Embodiment 5. FIG. It is a figure which shows the structure of the tenant power management system which concerns on Embodiment 6. FIG. It is a block diagram which shows the structure of the terminal device which concerns on Embodiment 6. It is a figure which shows the structure of the tenant power management system which concerns on Embodiment 7. FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a diagram illustrating a configuration of a building power management system 1 according to the first embodiment. The building power management system 1 includes a building power management device 4 for managing the power of the entire building 2 and a terminal device 5a provided corresponding to the plurality of tenants 3a to 3c in a building 2 in which a plurality of tenants 3a to 3c are occupying. ~ 5c. The building power management device 4 and the terminal devices 5a to 5c are connected to each other via a communication line L1 so that they can communicate with each other. In the present embodiment, an example is shown in which three tenants 3a to 3c are occupying the building 2, but the number of tenants occupying is not limited to this.

  The building power management device 4 manages the power of the entire building 2 based on the amount of power measured by the power measuring devices 7a to 7c of the tenants 3a to 3c. The building power management device 4 is installed in a management room of the building 2, for example. The detailed configuration of the building power management apparatus 4 will be described later.

  The terminal devices 5a to 5c accept input of various types of information from users (for example, tenant employees) of the corresponding tenants 3a to 3c, and transmit them to the building power management device 4. Moreover, the terminal devices 5a-5c control operation | movement of the electric equipment 6a-6c installed in each tenant 3a-3c. The terminal devices 5a to 5c are installed in the corresponding tenants 3a to 3c, for example. The detailed configuration of the terminal devices 5a to 5c will be described later.

  The electric devices 6a to 6c are devices that are installed in the respective tenants 3a to 3c and consume power by receiving power supplied from the power line L2 via the power measuring devices 7a to 7c. It consists of air conditioning equipment and lighting equipment. The electric devices 6a to 6c are connected to the terminal devices 5a to 5c via the communication line L3, and their operations are controlled by the terminal devices 5a to 5c.

  The power measuring devices 7a to 7c measure the power consumption consumed by the electric devices 6a to 6c provided in the tenants 3a to 3c, and include, for example, a wattmeter. The power measuring devices 7 a to 7 c are connected to the building management apparatus 4 via the communication line L <b> 1 and transmit the measured power consumption amount to the building power management apparatus 4.

  Next, the hardware configuration of the building power management apparatus 4 will be described. FIG. 2 is a block diagram illustrating a configuration of the building power management apparatus 4. As shown in the figure, the building power management apparatus 4 includes a control unit 410, an input unit 420, a display unit 430, a storage unit 440, and a communication unit 450.

  The control unit 410 includes, for example, an arithmetic processing circuit such as a CPU (Central Processing Unit), a RAM (Random Access Memory) functioning as a work area, various drivers, and the like. The control unit 410 controls each unit of the building power management apparatus 4 and executes various processes described later based on a predetermined operation program stored in the storage unit 440.

  The input unit 420 includes various keys, buttons, a touch panel, and the like for receiving an operation input from the user. The input unit 420 inputs information indicated by the received operation input to the control unit 410.

  The display unit 430 includes, for example, a liquid crystal display, a drive circuit, and the like. Display unit 430 displays an arbitrary image output from control unit 410.

  The storage unit 440 includes a storage device such as a ROM (Read Only Memory) or a flash memory, for example. The storage unit 440 stores an operation program executed by the control unit 410, data necessary for execution of each process, data acquired or generated by execution of each process, and the like. Specifically, the storage unit 440 stores tenant limited power information 441, surplus power information 442, and sold power information 443. Details of each information will be described later.

  The communication unit 450 includes an interface for performing communication using a predetermined communication method. The communication unit 450 transmits and receives various data to and from the terminal devices 3a to 3c and the power measuring devices 7a to 7c.

  Next, a functional configuration of the control unit 410 of the management device 4 will be described. As illustrated in FIG. 2, the control unit 410 functions as a building power consumption prediction unit 411, a tenant limited power acquisition unit 412, a surplus power acquisition unit 413, a purchase request acquisition unit 414, and a tenant limited power update unit 415.

  The building power consumption prediction unit 411 predicts the power consumption amount of the building 2 in a predetermined future period. Specifically, the building power consumption prediction unit 411 includes the past power consumption amount of the building 2, the contract state regarding the use of power between the administrator of the building 2 and the users of the tenants 3 a to 3 c, a predetermined future The power consumption is predicted based on information such as the date and time of the period, the day of the week, and the weather forecast for a predetermined period in the future.

  Here, the past power consumption amount of the building 2 is stored in the storage unit 440 as, for example, the sum of the power consumption amounts acquired in advance from the power measurement devices 7a to 7c of the tenants 3a to 3c. Further, the contract state is input by the user in advance via the input unit 420 and stored in the storage unit 440, for example. The weather forecast is acquired from a predetermined external server (not shown) via a network, for example, and stored in the storage unit 440. In addition, the building power consumption predicting unit 411 predicts the power consumption for one day (from 0:00 to 24:00) on the day after the day when the building power management process described later is executed, for example, as a predetermined period in the future.

  The tenant limited power acquisition unit 412 acquires the tenant limited power amount of each of the tenants 3 a to 3 c based on the power consumption amount predicted by the building power consumption prediction unit 411 and the building limited power amount of the building 2.

  Here, the “building energy limit” is calculated based on the contract power contracted with the power company that the building 2 supplies power, and the power that should be reduced according to the demands of the law or the government. 2 represents the limit value of the power consumption of the whole. When the power consumption of the building 2 exceeds the building power limit, the manager of the building 2 pays the government an amount corresponding to the excess amount, for example.

  “Tenant power limit” represents a limit value of power consumption for a predetermined period in the future of each tenant 3a to 3c. Specifically, the tenant limit power acquisition unit 412 includes the power consumption predicted by the building power consumption prediction unit 411, the building power limit of the building 2, and the administrator of the building 2 stored in advance in the storage unit. Each tenant 3a-3c is configured so that the total tenant power limit of each tenant 3a-3c does not exceed the building power limit based on information such as the contract status regarding the use of power with the users of tenants 3a-3c. The tenant limited power amount of 3a to 3c is calculated.

  In addition, the limited power acquisition unit 412 transmits the acquired tenant limited power amounts of the tenants 3a to 3c to the terminal devices 5a to 5c of the tenants 3a to 3c via the communication unit 450. In addition, the tenant limited power acquisition unit 412 causes the storage unit 440 to store tenant limited power information 441 including the acquired tenant limited power amount of each tenant 3a to 3c.

  FIG. 3 shows an example of tenant power limit information. The tenant power limit information 441 shown in FIG. 3 represents the tenant power limit of each tenant 3a to 3c every three hours as a predetermined time for the next day as a predetermined period in the future (from 0:00 to 24:00).

  The surplus power acquisition unit 413 acquires the surplus power amount of the building 2 in a future predetermined period based on the building limited power amount and the power consumption amount predicted by the building power consumption prediction unit 411. FIG. 4 shows an example of a surplus power acquisition method by the surplus power acquisition unit 413. FIG. 4 shows the building power limit for one day (0 to 24:00) and the predicted power consumption as a predetermined period in the future. The surplus power amount is calculated as a value obtained by subtracting the predicted power consumption amount from the building power limit amount (a region indicated by hatching in FIG. 3).

  Further, as illustrated in FIG. 2, the surplus power acquisition unit 413 stores the acquired surplus power amount in the storage unit 440 as surplus power information 442 indicating surplus power amount for each predetermined time in a predetermined period in the future. FIG. 5 shows an example of surplus power information. The surplus power information 442 shown in FIG. 5 represents the surplus power amount every three hours as a predetermined time for one day (from 0:00 to 24:00) the next day as a predetermined period in the future. Then, the surplus power acquisition unit 413 transmits the surplus power information 442 stored in the storage unit 440 to the terminal devices 5a to 5c of the tenants 3a to 3c via the communication 450.

  Returning to FIG. 2, the purchase request acquisition unit 414 acquires purchase request information from the users of the tenants 3a to 3c. Details of the purchase request information will be described later. Specifically, the purchase request acquisition unit 414 receives purchase request information from the terminal devices 5a to 5c of the tenants 3a to 3c via the communication unit 450.

  The tenant limited power update unit 415 updates the limited power amounts of the tenants 3a to 3c related to the purchase request information based on the purchase request information acquired by the purchase request acquisition unit 414 and the surplus power amount.

  Specifically, the tenant limited power update unit 415 obtains the surplus power amount by auction based on the desired purchase power amount acquired by the purchase request acquisition unit 414 and included in the purchase request information and the desired purchase amount. The amount of power to be sold from and the tenant to which the sale is to be made are determined. That is, when the purchase wish acquisition unit 414 acquires purchase request information from the users of the plurality of tenants 3a to 3c, the tenant limited power update unit 415 performs surplus in descending order of purchase purchase amounts included in the purchase request information. The amount of electric power to be sold out of the amount of electric power and the tenants 3a to 3c of the sale destination are determined. Then, the tenant limited power update unit 415 causes the storage unit 440 to store sold power information 443 including the determined power amount to be sold and the tenants 3a to 3c of the sales destination. In addition, the tenant limited power update unit 415 transmits the sold power information 443 to the terminal devices 5a to 5c of the tenants 3a to 3c that are sales destinations via the communication unit 450.

  Further, the tenant limited power update unit 415 updates the tenant limited power amounts of the tenants 3a to 3c included in the tenant limited power information 441 based on the sold power information 443. Specifically, the tenant limited power update unit 415 updates the tenant limited power amount by adding the sold power amount to the tenant limited power amount of the tenants 3a to 3c that are sold. Then, the tenant limited power update unit 415 transmits the tenant limited power information including the tenant limited power amount of the tenants 3a to 3c to the terminal devices 5a to 5c of the tenants 3a to 3c via the communication unit 450.

  Next, the hardware configuration of the terminal devices 5a to 5c will be described. FIG. 6 is a block diagram showing a configuration of the terminal device 5a. Here, the terminal device 5a will be described as an example, but the other terminal devices 5b and 5c are configured in the same manner as the terminal device 5a. As illustrated in FIG. 6, the terminal device 5a includes a control unit 510, an input unit 520, a display unit 530, a storage unit 540, and a communication unit 550.

  The control unit 510 includes, for example, an arithmetic processing circuit such as a CPU (Central Processing Unit), a RAM (Random Access Memory) functioning as a work area, various drivers, and the like. The control unit 510 controls each unit of the terminal device 5a and executes various processes described later based on a predetermined operation program stored in the storage unit 540.

  The input unit 520 includes various keys, buttons, a touch panel, and the like for receiving an operation input from the user. The input unit 520 inputs information indicated by the received operation input to the control unit 510.

  The display unit 530 includes, for example, a liquid crystal display, a drive circuit, and the like. Display unit 530 displays an arbitrary image output from control unit 510. The display unit 530 displays, for example, surplus power information, sold power information, and tenant limit power amount received from the building power management apparatus 4.

  The storage unit 540 is configured by a storage device such as a ROM (Read Only Memory) or a flash memory, for example. The storage unit 540 stores an operation program executed by the control unit 510, data necessary for executing each process, data obtained or generated by executing each process, and the like. Specifically, the storage unit 540 stores tenant limit power information 541 including the tenant limit power amount of the tenant 3a received from the building power management apparatus 5.

  The communication unit 550 includes an interface for performing communication using a predetermined communication method. The communication unit 550 transmits / receives various data to / from the building power management device 4 and the electrical devices 6a to 6c.

  Next, a functional configuration of the control unit 510 of the terminal device 5a will be described. As illustrated in FIG. 6, the control unit 510 functions as a purchase request input control unit 511, a tenant limited power update unit 512, and a device control unit 513.

  The purchase request input control unit 511 receives an input of purchase request information from the user of the tenant 3a via the input unit 520. Here, the “purchase request information” is information indicating a desire to purchase at least a part of the surplus power amount included in the surplus power information received from the building power management apparatus 4. Specifically, the purchase request information includes at least one predetermined time in a predetermined period in the future, and the amount of power that the users of the tenants 3a to 3c desire to purchase among the surplus power amount in the predetermined time, and the unit power amount Including the desired purchase amount.

  FIG. 7 shows an example of purchase request information. The purchase request information illustrated in FIG. 7 is an example of purchase request information input by the user of the tenant 3a when the surplus power information illustrated in FIG. 5 is received. In the purchase request information shown in FIG. 7, at the time when the user of the tenant 3a desires to purchase power, the amount of power desired to purchase (purchased power amount) out of the surplus power amount at that time and the desired power amount for purchase. The desired purchase amount per unit time is stored. In the purchase request information shown in FIG. 7, the purchase desired power amount and the purchase desired amount for the time not input by the user of the tenant 3a are indicated by hatching.

  Specifically, the purchase request input control unit 511 includes the surplus power information received from the building power management apparatus 4, the tenant limit power amount of the tenant 3a stored in the storage unit 540, the power consumption amount of the past tenant 3a, and the like. Together with this information, a message prompting the user to input the purchase request information is displayed on the display unit 530, thereby prompting the user of the tenant 3a to input the purchase request information. Then, the purchase request information input control unit 511 transmits the purchase request information input via the input unit 520 to the building power management apparatus 4 via the communication unit 550.

  The tenant limited power update unit 512 updates the tenant limited power information 541 stored in the storage unit 540 based on the tenant limited power information acquired from the building power management apparatus 4.

  The device control unit 513 controls the operation of the electric device 6a based on the tenant power limit information 541 stored in the storage unit 540. Specifically, the device control unit 513 starts, stops, and operates the electric device 6a so that the power consumption consumed in the tenant 3a does not exceed the tenant power limit included in the tenant power limit information 541. Control the mode and so on.

  Next, an example of the flow of processing executed by each of the building power management device 4 and the terminal devices 5a to 5c included in the building power management system 1 will be described with reference to the drawings.

  FIG. 8 is a flowchart showing the flow of building power management processing executed by the building power management apparatus 4. The building power management process shown in FIG. 8 is started, for example, when a predetermined time (for example, 18:00) is reached every day.

  First, the building power consumption prediction unit 411 predicts the amount of power consumption in the future predetermined period of the building 2 (step S101). Specifically, the building power consumption predicting unit 411 sets the past power consumption amount of the building 2, the weather forecast, the date, the day of the week, the contract status regarding the use of power between the building 2 and the tenants 3a to 3c, and the like. Based on this, the power consumption for the next day on which the present process is executed is predicted. In executing this processing, the building power management apparatus 4 acquires various types of information necessary for prediction of power consumption via the input unit 420 or the communication unit 450 in advance, and stores them in the storage unit 440. It shall be.

  Next, the tenant power limit acquisition unit 412 acquires the tenant power limit of each tenant 3a to 3c based on the power consumption predicted in step S101 and the building power limit of the building 2 (step S102). ). Then, the limited power acquisition unit 412 causes the storage unit 440 to store tenant limited power information 441 including the acquired tenant limited power amount of each tenant 3a to 3c.

  Next, the tenant limited power acquisition unit 412 includes, in the terminal devices 5a to 5c, the tenant limited power of the tenants 3a to 3c corresponding to the terminal devices 5a to 5c in the tenant limited power information 441 stored in the storage unit 440. The tenant power limit information including the amount is transmitted via the communication unit 450 (step S103).

  Next, the surplus power acquisition unit 413 calculates a surplus power amount for a predetermined period in the future based on the power consumption predicted in step S101 and the building power limit amount of the building 2 (step S104). Then, the surplus power acquisition unit 413 causes the storage unit 440 to store the acquired surplus power amount as surplus power information 442 that represents the surplus power amount for each predetermined time in a predetermined period.

  Next, the surplus power acquisition unit 413 transmits the surplus power information stored in the storage unit 440 to the terminal devices 5a to 5c via the communication unit 450 (step S105).

  Next, the purchase wish acquisition unit 414 determines whether or not a predetermined time (for example, 20:00) has elapsed (step S106). This predetermined time represents the reception restriction time of purchase request information to be considered when determining the surplus power sale destination and the sale power consumption. That is, the tenant limited power update unit 415 determines the purchase destination of surplus power and the purchase request information received by the building power management device 4 by this predetermined time, that is, the purchase request information acquired by the purchase request acquisition unit 414. Determine the amount of electricity sold. When it is determined that the predetermined time has not elapsed (step S106; No), the purchase wish acquisition unit 414 enters a waiting state until the predetermined time elapses.

  When it is determined that the predetermined time has elapsed (step S106; Yes), the tenant limited power update unit 415, based on the purchase request information acquired by the purchase request acquisition unit 414, the tenants 3a to 3c that sell the surplus power amount. And the amount of sold power is determined (step S107).

  Here, an example of how the tenant limited power update unit 415 sells surplus power and how to determine the sold power will be described with reference to FIGS. 9 and 10. FIG. 9 is a diagram showing surplus power information and purchase request information received from the terminal devices 5a to 5c, and FIG. 10 is a diagram showing surplus power information and sold power information transmitted to the terminal devices 5a to 5c.

  The tenant limited power update unit 415, among the purchase request information received from each of the terminal devices 5a to 5c every 3 hours for the day of the next day, purchase request information including the purchase power amount and the purchase request amount at that time, That is, the purchase desired amounts included in the purchase request information from the terminal devices 5a to 5c of the tenants 3a to 3c who desire to purchase the surplus electric power for that time are compared. Then, it decides to sell the purchase desired power amount out of the surplus power amount to the tenants 3a to 3c having the highest purchase desired amount. In addition, if there is still a surplus even after subtracting the desired purchase power amount determined to be sold from the surplus power amount, the surplus power amount is transferred to the tenant 3a-3c having the next highest purchase request amount (the desired purchase power amount (however, If the surplus power amount is smaller than the desired purchase power amount, it is determined to allocate the surplus power amount). By repeating this process, the tenant limited power updating unit 415 determines the surplus power sales destination and the sold power.

  For example, in the purchase request information received from each of the terminal devices 5a to 5c shown in FIG. 9, the tenant limited power update unit 415 receives the purchase request information received from the terminal device 5a and the terminal device 5b when the time is between 0:00 and 3:00. Compare the purchase amount included in the. Then, the tenant limited power update unit 415 determines to sell 50 kwh, which is the desired purchase power amount as the sale power amount, to the tenant 3b whose purchase request amount is high at 10 yen / kwh, which is the desired purchase amount, as the sale amount. To do. Then, as illustrated in FIG. 10, the tenant limited power update unit 415 stores the determined sale power amount and sale price in the sale power information transmitted to the terminal device 3 b.

  For example, in the purchase request information received from each of the terminal devices 5a to 5c illustrated in FIG. 9, the tenant limited power update unit 415 receives the purchase request information received from the terminal devices 5a to 5c when the time is between 15:00 and 18:00. Compare the purchase amount included in the. Then, the tenant limited power updating unit 415 sells 10 kwh, which is the desired purchase power amount, as the sale power amount to the tenant 3a having the highest purchase amount, for 7 yen / kwh, which is the desired purchase amount. decide. Then, as illustrated in FIG. 10, the tenant limited power update unit 415 stores the determined sold power amount and sold price in the sold power information transmitted to the terminal device 3a.

  Further, the tenant limited power update unit 415 determines the remaining surplus power amount 10 kwh after the sale to the tenant 3 a is sent to the tenant 3 b having the next highest purchase amount after the tenant 3 a as the sold power amount. It decides to sell a certain 5 kwh as a sale price at a desired purchase price of 5 yen / kwh. Then, as illustrated in FIG. 10, the tenant limited power update unit 415 stores the determined sale power amount and sale price in the sale power information transmitted to the terminal device 3 b.

  Further, the tenant limited power update unit 415 wishes to purchase the remaining surplus power amount 5 kW after the tenant 3 a and 3 b are sold to the tenant 3 c as the sale amount of the remaining surplus power amount 5 kw as the sold power amount. Decide to sell for 3 yen / kwh. Then, as illustrated in FIG. 10, the tenant limited power update unit 415 stores the determined sale power amount and sale price in the sale power information transmitted to the terminal device 3 c.

  The tenant limited power update unit 415 acquires the sold power information shown in FIG. 10 by executing the above processing for the purchase request information every three hours for the next day.

  The above is an example in the case where auction is adopted as a method for determining the surplus power sales destination and sold power by the tenant limited power update unit 415, but the auction method is not limited thereto. For example, the tenant limited power update unit 415 may purchase purchase information including the purchase amount of all surplus power during the predetermined time instead of the desired purchase amount and purchase amount every predetermined time of the surplus power information. You may receive it. Then, the tenant limited power updating unit 415 may decide to sell all surplus power amounts for the predetermined time to the tenants 3a to 3c that have presented the highest desired purchase amount during the predetermined time.

  Returning to FIG. 8, the tenant limited power update unit 415 is stored in the storage unit 440 based on the tenants 3a to 3c that sell the surplus power determined in step S107 and the sold power. The tenant power limit of each tenant 3a-3c is updated (step S108). Specifically, for example, when the tenant power limit of the tenant 3a is a value included in the tenant limit information 441 illustrated in FIG. 3, the tenant power limit update unit 415 is a terminal corresponding to the tenant 3a illustrated in FIG. Based on the sold power information transmitted to the device 5a, the tenant limited power amount is updated as shown in FIG. 11 by adding the sold power amount at the time when the sale of surplus power is determined to the tenant limited power amount at that time. To do.

  Returning to FIG. 8, the tenant limited power update unit 415 transmits the sold power information and tenant limited power information of the tenants 3 a to 3 c to the terminal devices 5 a to 5 c of the tenants 3 a to 3 c via the communication unit 450 ( Step S109). Then, the tenant limited power update unit 415 ends the building power management process.

  Next, the flow of power purchase processing executed by the terminal devices 5a to 5c will be described. FIG. 12 is a flowchart showing a flow of power purchase processing executed by the terminal devices 5a to 5c. The power purchase process is started when the surplus power information is received from the building power management apparatus 4.

  The purchase request input control unit 511 causes the display unit 530 to display the surplus power information received from the building power management apparatus 4 and the tenant limited power information stored in the storage unit 540 (step S201).

  Next, the purchase request input control unit 511 determines whether or not an operation for requesting purchase of surplus power has been input (step S202). Specifically, the purchase request input control unit 511 displays a message asking whether or not the purchase of surplus power is desired on the display unit 530, and the user of the tenants 3a to 3c selects “Yes” via the input unit 520. "Is input, it is determined that an operation for requesting purchase has been input. When an operation indicating “No” is input by the user via the input unit 520, the purchase request input control unit 511 inputs an operation indicating that purchase is not desired, that is, purchase is desired. Determine that no operation was entered. Then, when an operation for requesting purchase is not input (step S202; No), the process is terminated.

  If the purchase request input control unit 511 determines that an operation for requesting purchase has been input (step S202; Yes), the purchase time (purchase request time) for purchasing the surplus power is purchased at that time. It is determined whether or not a desired power amount (desired purchase power amount) and a desired purchase amount per unit power amount have been input (step S203). Specifically, the purchase request input control unit 511 is input with the purchase desired time, the purchase desired power amount, and the purchase desired amount by the tenant 3a to 3c user via the input unit 520, and represents “determine”. It is determined whether or not an operation has been input. Then, when it is determined that they have been input, the purchase request input control unit 511 determines that the purchase desired time, the purchase desired power amount, and the purchase desired amount have been input. When the purchase request input control unit 511 determines that the purchase desired time, the purchase desired power amount, and the purchase desired amount have not been input (step S203; No), until it is determined that they have been input, It will be in a waiting state.

  When it is determined that the purchase desired time, the purchase desired power amount, and the purchase desired amount are input (step S203; Yes), the purchase request input control unit 511 displays purchase request information including the input information. It transmits to the building power management apparatus 4 by the communication part 550 (step S204).

  Next, the tenant limited power update unit 512 determines whether or not the sold power information and the tenant limited power information are received from the building power management apparatus 4 (step S205). When it is determined that the tenant limited power update unit 512 has not received them (step S205; No), the tenant limited power update unit 512 is in a waiting state until it is received.

  When it is determined that the sold power information and the tenant limit power information are received (step S205; Yes), the tenant limit power update unit 512 stores the tenant limit stored in the storage unit 540 based on the received tenant limit power information. The power information 541 is updated (step S206). Then, the tenant limited power update unit 512 ends the power purchase process.

  As described above, in the building power management system 1 according to the first embodiment, the surplus power amount in the entire building 2 can be sold according to purchase requests from users of the tenants 3a to 3c. Therefore, for example, when the tenant 3a to 3c requires a larger amount of power than the tenant power limit, the tenant 3a-3c purchases the surplus power amount of the building 2 in advance and adds the purchased power amount to the tenant limit power amount. Then, by updating the tenant power limit, it is possible to consume power without exceeding the tenant power limit.

(Embodiment 2)
In the building power management system 1 according to the first embodiment, the building power management apparatus 4 determines the amount of surplus power in the entire building 2 by changing the tenant limited power amount by buying and selling between the administrator of the building 2 and the users of the tenants 3a to 3c. Update. On the other hand, in the building power management system according to the second embodiment, the building power management apparatus 4a uses the tenant 3a to 3c to change the tenant limited power amount by buying and selling between the tenant 3a to 3c users. Update. In the following, the second embodiment will be described in detail with respect to the configuration different from the first embodiment, and the same reference numerals are used for the same configurations, and the detailed description thereof is omitted.

  The building power management system according to the present embodiment is provided in a building 2 in which a plurality of tenants 3a to 3c occupies, corresponding to the building power management device 4a that manages the power of the entire building 2 and the plurality of tenants 3a to 3c. Terminal devices 5aa to 5ca. This configuration is the same as that of the building power management system 1 according to the first embodiment shown in FIG.

  FIG. 13 is a diagram illustrating a configuration of the terminal device 5aa according to the present embodiment. Here, the terminal device 5aa will be described as an example, but the other terminal devices 5ba and 5ca are also configured in the same manner as the terminal device 5aa. As shown in the figure, the control unit 510a of the terminal device 5aa further functions as a surplus power input control unit 514 in addition to the function of the control unit 510 of the terminal device 5a according to the first embodiment shown in FIG.

  The surplus power input control unit 514 receives an input of surplus power information from the user of the tenant 3a via the input unit 520. Here, the “surplus power information” in the present embodiment includes the surplus power amount that represents at least a part of the power amount that the user of the tenant 3a desires to sell out of the tenant limited power amount of the tenant 3a. Specifically, the surplus power information includes at least one predetermined time in a predetermined period in the future and the surplus power amount that the user of the tenant 3a desires to sell out of the tenant limited power amount in the predetermined time.

  FIG. 14 shows an example of surplus power information. The surplus power information illustrated in FIG. 14 is the surplus power input by the user of the tenant 3a when the tenant limited power information 441 of the tenant 3a illustrated in FIG. 3 is stored in the storage unit 540 as the tenant limited power information 541. It is an example of information. The surplus power information shown in FIG. 14 represents the surplus power amount every three hours as the predetermined time for the next day for one day (from 0:00 to 24:00) as the predetermined period in the future. Further, in the surplus power information illustrated in FIG. 14, the amount of power desired to be sold (surplus power amount) among the tenant limited power amount at the time when the user of the tenant 3 a desires to sell power is stored. . In the surplus power information shown in FIG. 14, the surplus power amount during the time that is not input by the user of the tenant 3a is indicated by hatching.

  Specifically, the surplus power input control unit 514 prompts the input of surplus power information together with information such as the tenant limit power amount of the tenant 3a stored in the storage unit 540 and the power consumption amount of the past tenant 3a. Is displayed on the display unit 530 to prompt the user of the tenant 3a to input surplus power information. Then, the surplus power input control unit 514 transmits the surplus power information input via the input unit 520 to the building power management apparatus 4a via the communication unit 550.

  FIG. 15 is a block diagram showing the configuration of the building power management apparatus 4a according to this embodiment. As illustrated in FIG. 15, the control unit 410a of the building power management apparatus 4a according to the present embodiment replaces the surplus power with the surplus power acquisition unit 413 and the tenant limited power update unit 415 according to the first embodiment illustrated in FIG. It functions as the acquisition unit 413a and the tenant limited power update unit 415a.

  The surplus power acquisition unit 413a acquires surplus power information from the users of the tenants 3a to 3c. Specifically, the surplus power acquisition unit 413a receives surplus power information from the terminal devices 5aa to 5ca of the tenants 3a to 3c via the communication unit 450 and stores the surplus power information in the storage unit 440. Then, the surplus power acquisition unit 413a transmits the surplus power information 442 stored in the storage unit 440 to the terminal devices 5aa to 5ca of the tenants 3a to 3c via the communication 450.

  The tenant limited power update unit 415a relates to the limit power amount of the tenants 3a to 3c related to the purchase request information and the surplus power amount based on the purchase request information acquired by the purchase request acquisition unit 414 and the surplus power amount. The power limits of the tenants 3a to 3c are updated.

  Specifically, the tenant limited power update unit 415a determines the amount of power to be sold from the surplus power amount and the tenants 3a to 3c of the sale destination, similarly to the tenant limited power update unit 415 in the first embodiment. To do. Then, the tenant limited power update unit 415a causes the storage unit 440 to store the sold power information 443 including the determined power amount to be sold and the tenants 3a to 3c of the sales destination. Also, the tenant limited power updating unit 415a sends the sold power information 443 to the terminal devices 5a to 5c of the selling tenants 3a to 3c (tenants 3a to 3c related to the surplus power amount) via the communication unit 450 and the selling destination. To the terminal devices 5a to 5c of the tenants 3a to 3c.

  Also, the tenant limited power update unit 415a updates the tenant limited power amount of the tenants 3a to 3c included in the tenant limited power information 441 based on the sold power information 443. Specifically, the tenant limited power update unit 415a updates the tenant limited power amount by adding the sold power amount to the tenant limited power amount of the tenants 3a to 3c that are sold. Further, the tenant limited power update unit 415a updates the tenant limited power amount by subtracting the sold power amount from the tenant limited power amount of the tenants 3a to 3c that are the selling sources. Then, the tenant limited power update unit 415a transmits tenant limited power information including the tenant limited power amount of the tenants 3a to 3c to the terminal devices 5a to 5c of the tenants 3a to 3c via the communication unit 450.

  Next, an example of the flow of processing executed by each of the building power management device 4a and the terminal devices 5aa to 5ca included in the building power management system according to the present embodiment will be described with reference to the drawings.

  FIG. 16 is a flowchart showing a flow of building power management processing executed by the building power management apparatus 4a. The building power management process shown in FIG. 16 is started, for example, when a predetermined time (for example, 18:00) is reached every day.

  In steps S301 to S303, processing is executed in the same manner as steps S101 to S103 of the building power management process (see FIG. 8) in the first embodiment.

  Next, the surplus power acquisition unit 413a determines whether or not a predetermined time (for example, 20:00) has elapsed (step S304). This predetermined time represents the reception restriction time of surplus power information transmitted to the terminal devices 5aa to 5ac of the tenants 3a to 3c. That is, the surplus power acquisition unit 413a transmits the surplus power information received by the building power management device 4 by this predetermined time, that is, the surplus power information acquired by the surplus power acquisition unit 413a, to the terminal devices 5aa to 5ac. If the surplus power acquisition unit 413a determines that the predetermined time has not elapsed (step S304; No), the surplus power acquisition unit 413a waits until the predetermined time elapses.

  When it is determined that the predetermined time has elapsed (step S304; Yes), the surplus power acquisition unit 413a transmits the surplus power information 442 stored in the storage unit 440 to the terminal devices 5aa to 5ca (step S305).

  Next, in steps S306 to S307, processing is executed in the same manner as steps S106 to S107 of the building power management processing (see FIG. 8) in the first embodiment.

  Next, the tenant limited power update unit 415a stores the tenants 3a to 3c that sell the surplus power determined in step S307 and the tenants 3a to 3c stored in the storage unit 440 based on the sold power. The tenant power limit is updated (step S308). Specifically, the tenant limited power update unit 415a adds the amount of power to be sold to the tenant limited power amount of the tenant 3a to 3c that is the seller, and sells it from the tenant limited power amount of the tenant 3a to 3c that is the seller The tenant limit power amount is updated by subtracting the power amount to be used.

  Next, in step S309, the same process as in step S109 of the building power management process (see FIG. 8) in the first embodiment is executed. Then, the tenant limited power update unit 415a ends the building power management process.

  Next, the flow of power sale processing executed by the terminal devices 5aa to 5ca will be described. FIG. 17 is a flowchart showing a flow of power sale processing executed by the terminal devices 5aa to 5ca. The power sale process is started when a user of the tenants 3a to 3c inputs an operation input for starting execution of the power sale process via the input unit 520.

  The surplus power input control unit 514 causes the display unit 530 to display the tenant limited power information stored in the storage unit 540 (step S401).

  Next, the surplus power input control unit 514 determines whether or not an operation for requesting the sale of surplus power is input (step S402). Specifically, the surplus power input control unit 514 displays a message asking whether or not to sell the surplus power amount on the display unit 530, and the user of the tenants 3a to 3c selects “Yes” via the input unit 520. "Is input, it is determined that an operation for requesting sale has been input. In addition, when an operation indicating “No” is input by the user via the input unit 520, the surplus power input control unit 514 inputs an operation indicating that the sale is not desired, that is, indicates that the sale is desired. Determine that no operation was entered. Then, if an operation for requesting sale is not input (step S402; No), the process is terminated.

  When the surplus power input control unit 514 determines that an operation for desiring to be sold is input (step S402; Yes), the surplus power amount is desired to be sold (desired sale time), and the sale is performed at that time. It is determined whether or not a desired power amount (surplus power amount) has been input (step S403). Specifically, the surplus power input control unit 514 inputs whether the tenant 3a to 3c user inputs the desired sale time and the surplus power amount via the input unit 520, and inputs an operation indicating “decision”. Is determined. If the surplus power input control unit 514 determines that they have been input, the surplus power input control unit 514 determines that the desired sale time and the surplus power amount have been input. If the surplus power input control unit 514 determines that the desired sale time and the surplus power amount are not input (step S403; No), the surplus power input control unit 514 is in a waiting state until it is determined that they are input.

  When the surplus power input control unit 514 determines that the desired sale time and the surplus power amount are input (step S403; Yes), the surplus power information including the input information is transmitted to the building power by the communication unit 550. It transmits to the management apparatus 4a (step S404).

  Next, the tenant limited power update unit 512 determines whether or not the sold power information and the tenant limited power information are received from the building power management apparatus 4a (step S405). When it is determined that the tenant limited power update unit 512 has not received them (step S405; No), the tenant limited power update unit 512 waits until it is received.

  When it is determined that the sold power information and the tenant limit power information are received (step S405; Yes), the tenant limit power update unit 512 stores the tenant limit stored in the storage unit 540 based on the received tenant limit power information. The power information 541 is updated (step S406). Then, the tenant limited power update unit 512 ends the power sale process.

  As described above, in the building power management system 1 according to the second embodiment, the surplus power amount in the tenants 3a to 3c can be sold according to the sales wishes from the users of the tenants 3a to 3c. Users of tenants 3a to 3c can purchase the surplus power amount as desired. Therefore, the tenants 3a to 3c can effectively utilize the surplus power amount by selling the surplus power amount in advance when, for example, a power consumption amount smaller than the tenant limit power amount is expected. In addition, for example, when tenants 3a to 3c require a larger amount of power than the tenant power limit, the tenants 3a to 3c purchase the surplus power amount of the other tenants 3a to 3c in advance, and use the purchased power amount By updating the tenant power limit by adding to the power limit, it is possible to consume power without exceeding the tenant power limit.

(Embodiment 3)
In the building power management system according to the first embodiment and the second embodiment, the building power management apparatus 4 determines whether the surplus power amount in the future predetermined period is between the administrator of the building 2 and the users of the tenants 3a to 3c, or from the tenant 3a to 3a. The tenant power limit is updated by buying and selling between users 3c. On the other hand, in the building power management system according to the third embodiment, the building power management apparatus 4b updates the tenant limited power amount by buying and selling between users of the tenants 3a to 3c for the surplus power amount in a predetermined time including the current time. To do. Hereinafter, the third embodiment will be described in detail with respect to the configuration different from the first embodiment, and the same reference numerals are used for the same configurations, and the detailed description thereof is omitted.

  The building power management system according to the present embodiment is provided in a building 2 in which a plurality of tenants 3a to 3c occupies, corresponding to the building power management device 4b that manages the power of the entire building 2 and the plurality of tenants 3a to 3c. Terminal devices 5ab to 5cb. This configuration is the same as that of the building power management system 1 according to the first embodiment shown in FIG.

  FIG. 18 is a diagram illustrating a configuration of the terminal device 5ab according to the present embodiment. Here, the terminal device 5ab is described as an example, but it is assumed that the other terminal devices 5bb and 5cb are configured in the same manner as the terminal device 5ab. As shown in the figure, in addition to the function of the control unit 510 of the terminal device 5a according to the first embodiment shown in FIG. 6, the control unit 510b of the terminal device 5ab further includes an immediate purchase request input control unit 515, an immediate sale setting. It functions as the input control unit 516.

  The immediate purchase request input control unit 515 receives input of immediate purchase request information from the user of the tenant 3a via the input unit 520. Here, “immediate purchase request information” is the amount of power desired to be purchased in a predetermined time including the current time (for example, 3 hours from 12:00 to 15:00 when the current time is 13:00) It is information including. Then, the immediate purchase request information input control unit 515 transmits the immediate purchase request information input via the input unit 520 to the building power management apparatus 4b via the communication unit 550.

  The immediate sale setting input control unit 516 receives input of immediate sale setting information from the user of the tenant 3a via the input unit 520. Here, the “immediate sale setting information” is obtained when the building power management device 4b receives immediate purchase request information from the terminal devices 5b and 5c of the other tenants 3b and 3c. Represents the setting as to whether or not to sell the electric energy for the immediate purchase desired electric energy included in the immediate purchase request information. Then, the immediate purchase request information input control unit 516 transmits the immediate sale setting information input via the input unit 520 to the building power management apparatus 4b via the communication unit 550.

  FIG. 19 is a block diagram showing the configuration of the building power management apparatus 4b according to this embodiment. As illustrated in FIG. 19, the storage unit 440 b of the building power management apparatus 4 b according to the present embodiment further includes immediate sale setting information 444 in addition to the information stored in the storage unit 440 according to the first embodiment illustrated in FIG. 2. Remember. Further, the control unit 410b of the building power management apparatus 4b according to the present embodiment functions as an immediate purchase desire acquisition unit 416 and an immediate sale setting unit 417 in addition to the functions of the control unit 410b according to the first embodiment illustrated in FIG. To do. Also, the control unit 410b functions as a tenant limited power update unit 415b instead of the tenant limited power update unit 415 according to the embodiment illustrated in FIG.

  The immediate purchase request acquisition unit 416 acquires immediate purchase request information from the users of the tenants 3a to 3c. Specifically, the immediate purchase request acquisition unit 416 receives the immediate purchase request information via the communication unit 450 from the terminal devices 5ab to 5cb of the tenants 3a to 3c.

  The immediate sale setting unit 417 acquires the immediate sale setting information from the users of the tenants 3a to 3c and stores the information in the storage unit 440.

  In addition to the function of the tenant limited power update unit 415 in the first embodiment, the tenant limited power update unit 415b stores the immediate sale setting stored in the storage unit 440 when the immediate purchase request acquisition unit 416 acquires the immediate purchase request information. With reference to the information 444, the tenant 3a to 3c of the selling source and the electric energy to be sold are determined from among the tenants 3a to 3c related to the setting to sell. Then, the tenant limited power updating unit 415b, based on the determined power amount to be sold, the limited power amount of the selling tenants 3a to 3c and the selling tenants 3a to 3c (tenant 3a to the immediate purchase request information 3c) is updated.

  As described above, with the configuration described above, in the building power management system according to the third embodiment, the users of the tenants 3a to 3c can use the tenant limit when the power consumption amount exceeds the tenant limit power amount at the present time or at the latest time. When the power amount is likely to be exceeded, the surplus power amount can be purchased immediately from the users of the other tenants 3a to 3c by transmitting the immediate purchase request information to the building power management device 4b. Then, by adding the purchased power amount to the tenant limit power amount and updating the tenant limit power amount, power can be consumed without exceeding the tenant limit power amount.

(Embodiment 4)
In the building power management system according to the fourth embodiment, the building power management device 4c acquires a peak shift contribution representing the contribution to the suppression of the peak of the power consumption of the building 2. In the following, the fourth embodiment will be described in detail with respect to the configuration different from the above-described second embodiment, the same reference numerals will be used for the same configuration, and the detailed description thereof will be omitted.

  FIG. 20 is a block diagram showing the configuration of the building power management apparatus 4c according to this embodiment. As shown in FIG. 20, the control unit 410c of the building power management apparatus 4c according to the present embodiment further includes a peak shift contribution acquisition unit 418c, in addition to the function of the control unit 410a according to the second embodiment shown in FIG. It functions as an electricity bill acquisition unit 419. Further, the storage unit 440c of the building power management apparatus 4c according to the present embodiment further stores peak shift contribution information 445 in addition to the information stored in the storage unit 440 according to the second embodiment illustrated in FIG.

  The peak shift contribution acquisition unit 418c is based on the power consumption predicted by the building power consumption prediction unit 411 and the amount of power traded by the users of the tenants 3a to 3c in a predetermined future period when the power consumption is predicted. To obtain the peak shift contribution.

  Specifically, the peak shift contribution acquisition unit 418c increases the predicted power consumption amount of the building 2 at the time when the users of the tenants 3a to 3c purchase the surplus power amount, so that the tenant 3a to 3c Get a low peak shift contribution. In addition, the peak shift contribution acquisition unit 418c has a higher peak with respect to the tenants 3a to 3c as the predicted power consumption of the building 2 at the time when the users of the tenants 3a to 3c sell the surplus power is higher. Get shift contribution. Then, the peak shift contribution acquisition unit 418c stores the acquired peak shift contribution for each tenant 3a to 3c in the storage unit 440c as peak shift contribution information 445.

  The electricity charge acquisition unit 419 acquires the electricity charge paid to the manager of the building 2 for each of the tenants 3a to 3c. Specifically, the electricity rate acquisition unit 419, for each tenant 3a to 3c, for example, the preset hourly electricity rate A, the hourly power consumption B of the tenant 3a to 3c, and the tenant 3a Based on the peak shift contribution C of ˜3c, the electricity rate X is acquired for each tenant 3a to 3c as X = A × B / C. That is, the electricity bill acquisition unit 419 obtains a lower electricity bill as the peak shift contribution C is larger.

  With the configuration described above, in the building power management system according to the fourth embodiment, the building power management device 4c acquires the peak shift contribution for each tenant 3a to 3c, and based on the acquired peak shift contribution, Get electricity bills for tenants 3a-3c. Accordingly, the user of each tenant 3a to 3c can be encouraged to sell the surplus power amount at a time when a large amount of power consumption is expected, and the purchase of the surplus power amount can be suppressed. The peak of power consumption can be suppressed, and excess building power limit can be suppressed. In addition, it is easier to understand the effect of energy saving and peak reduction efforts on a tenant basis than the method of determining the burden of electricity charges based on the tenant area. Therefore, the awareness of peak reduction should be improved for the users of tenants 3a to 3c. Can do.

  In the fourth embodiment, the modification of the building power management system according to the second embodiment has been described. However, the configuration of the fourth embodiment may be applied to the building power management system 1 according to the first embodiment. In this case, the peak shift contribution acquisition unit 418c is configured such that the users of the tenants 3a to 3c are in the building 2 in the future predetermined period in which the power consumption predicted by the building power consumption prediction unit 411 and the power consumption are predicted. The peak shift contribution is acquired based on the amount of power purchased from the surplus power.

  Moreover, although said Embodiment 4 demonstrated the structure which reflects the acquired peak shift contribution in an electricity bill, the usage method of a peak shift contribution is not restricted to this. For example, for the fines imposed when the power consumption of the entire building 2 exceeds the building power limit, the amount borne by the users of the tenants 3a to 3c may be determined according to the peak shift contribution.

  In the fourth embodiment, the electricity rate acquisition unit 419 uses the power consumption amount predicted by the building power consumption amount prediction unit 411 as a preset hourly electricity rate used when acquiring the electricity rate. The hourly electricity charge acquired based on the average value of the past power consumption of the entire building 2 may be used. For example, an hourly electricity charge that increases as the power consumption of the building 2 increases may be used. Thereby, it is possible to further improve the energy saving and peak reduction awareness for the users of the tenants 3a to 3c.

  In the fourth embodiment, the peak shift contribution acquisition unit 418c acquires the peak shift contribution by using the power consumption predicted by the building power consumption prediction unit 411. However, the predicted power consumption Instead of this, the peak shift contribution may be acquired using a preset energy cost for each predetermined time.

  Specifically, for example, the storage unit 440c stores the energy cost per predetermined time calculated based on the time transition of the general power consumption acquired from the outside or the time transition of the past power consumption of the building 2. Pre-stored. And the peak shift contribution acquisition part 418c is the higher the energy cost in the time when the user of tenant 3a-3c purchased the surplus electric energy based on the energy cost for every predetermined time memorize | stored in the memory | storage part 440c. A low peak shift contribution is acquired for the tenants 3a to 3c. Further, the peak shift contribution acquisition unit 418c acquires a higher peak shift contribution to the tenants 3a to 3c as the energy cost at the time when the users of the tenants 3a to 3c sell the surplus power amount is higher. Then, the peak shift contribution acquisition unit 418c stores the acquired peak shift contribution for each tenant 3a to 3c in the storage unit 440c as peak shift contribution information 445.

  Thus, by acquiring the peak shift contribution using the energy cost for each predetermined time set in advance, a large amount of consumption for the users of the tenants 3a to 3c as in the fourth embodiment. Since it is possible to promote the sale of surplus power during the time when power is expected, it is possible to suppress the purchase of surplus power, so that the peak of power consumption of the entire building 2 is suppressed, and the building power limit is exceeded. Can be suppressed.

(Embodiment 5)
In the building power management system according to the fifth embodiment, the building power management apparatus 4d has, for each tenant 3a to 3c, the power consumption consumed by the tenants 3a to 3c is smaller than the tenant limited power amount of the tenants 3a to 3c. Acquire energy conservation contributions that increase in degree. Hereinafter, the fifth embodiment will be described in detail with respect to the configuration different from that of the above-described fourth embodiment, the same reference numerals are used for the same configurations, and the detailed description thereof will be omitted.

  FIG. 21 is a block diagram showing the configuration of the building power management apparatus 4d according to this embodiment. As shown in FIG. 21, the control unit 410d of the building power management apparatus 4d according to the present embodiment is replaced with the peak shift contribution 418c and the electricity rate acquisition unit 419 of the control unit 410c according to the fourth embodiment shown in FIG. , Functions as an energy saving contribution level acquisition unit 418d and an electricity rate acquisition unit 419d. Further, the storage unit 440d of the building power management apparatus 4d according to the present embodiment stores energy saving contribution degree information 446 instead of the peak shift contribution degree information 445 stored by the storage unit 440c according to the fourth embodiment illustrated in FIG. To do.

  For each tenant 3a to 3c, the energy saving contribution level acquisition unit 418d makes an energy saving contribution based on the power consumption of the tenant 3a to 3c and the power limit of the tenant 3a to 3c included in the tenant power limit information 441. Get the degree.

  Specifically, the energy saving contribution degree acquisition unit 418d is configured such that the power consumption amount actually consumed by the tenants 3a to 3c is lower than the tenant limit power amount of the tenant 3a to 3c in the time when the power amount is consumed. A high degree of energy saving contribution is acquired for the tenants 3a to 3c. Then, the energy saving contribution degree acquisition unit 418d stores the acquired energy saving contribution degree for each tenant 3a to 3c in the storage unit 440d as the energy saving contribution degree information 446.

  The electricity charge acquisition unit 419d acquires the electricity charge paid to the administrator of the building 2 for each of the tenants 3a to 3c. Specifically, the electricity rate acquisition unit 419, for each tenant 3a to 3c, for example, the preset hourly electricity rate A, the hourly power consumption B of the tenant 3a to 3c, and the tenant 3a From the energy saving contribution degree D of ˜3c, the electric charge X is acquired for each tenant 3a to 3c as X = A × B / D. That is, the electricity charge acquisition unit 419 acquires a lower electricity charge as the energy saving contribution degree D increases.

  With the configuration described above, in the building power management system according to the fifth embodiment, the building power management device 4d acquires the energy saving contribution for each tenant 3a to 3c, and each tenant 3a based on the acquired energy saving contribution. Get an electricity bill of ~ 3c. This makes it easier to understand the effect of energy saving efforts on a tenant basis than the method of determining the burden of electricity charges based on the tenant area, so that the energy saving awareness can be improved for the users of the tenants 3a to 3c.

(Embodiment 6)
Next, a tenant power management system according to the sixth embodiment will be described. FIG. 22 is a diagram illustrating a configuration of the tenant power management system 8 according to the sixth embodiment. The tenant power management system 8 includes a plurality of building power management systems 1 according to the first embodiment, and a tenant power management apparatus 9 connected to the plurality of building power management systems 1 via the network N. In the following, the sixth embodiment will be described in detail with respect to the configuration different from the first embodiment, and the same reference numerals are used for the same configurations, and the detailed description thereof is omitted.

  The plurality of building power management systems 1 includes a terminal device 5ae installed in a predetermined tenant 3a that moves into each building 2. Here, the predetermined tenant 3a is a tenant that is collectively managed by the tenant power management apparatus 9 together with the power consumption in the predetermined tenant 3a that moves into another building 2 in the tenant 3a. Specifically, for example, when the tenant power management apparatus 9 is a server of a company A (head office), a user of the predetermined tenant 3a corresponds to a branch office or affiliated company of the company A.

  FIG. 23 is a block diagram illustrating a configuration of the terminal device 5ae according to the present embodiment. As illustrated in FIG. 23, the control unit 510e of the terminal device 5ae according to the present embodiment further includes a power consumption transmission unit 517 in addition to the function of the control unit 510 of the terminal device 5a according to the first embodiment illustrated in FIG. Function.

  The power consumption transmitting unit 517 acquires the power consumption measured by the power measuring device 7a (see FIG. 1) installed in the tenant 3a, and the power consumption information including the acquired power consumption is obtained via the network N. It transmits to the power management apparatus 10.

  Returning to FIG. 22, the tenant power management device 9 manages the power consumption in each tenant 3 a transmitted by each terminal device 5 ae. Specifically, for example, the management device 10 calculates the degree of achievement of energy saving in the entire tenant 3 based on the power consumption information transmitted by each terminal device 7.

  As described above, in the tenant power management system according to the sixth embodiment, the terminal device 5ae of the predetermined tenant 3a in the plurality of building power management systems 1 is connected to the tenant power management device 9, and the power consumption amount in each tenant 3a. Is transmitted to the tenant power management apparatus 9. Therefore, the tenant power management apparatus 9 can collectively manage the power consumption in the predetermined tenant 3a that moves into each building 2.

  In the tenant power management system according to the sixth embodiment, the power consumption information transmitted from each terminal device 5ae is the amount of power sold by the tenant 3a and the purchased power in the building 2 in which the tenant 3a is occupying. An amount may be included. Thereby, the tenant power management device 9 can collectively manage the sold power amount and the purchased power amount in each tenant 3a included in the power consumption information transmitted by each terminal device 5ae. Then, the tenant power management apparatus 9 collectively manages the sold power amount and the purchased power amount in each tenant 3a, so that the power consumption amount of the entire tenant 3a exceeds the limit power amount imposed on the entire tenant 3a. Can be suppressed.

(Embodiment 7)
Next, a tenant power management system according to the seventh embodiment will be described. FIG. 24 is a diagram illustrating a configuration of a tenant power management system 8f according to the seventh embodiment. The tenant power management system 8f further includes a power supply device 10 in addition to the configuration of the tenant power management system 8 according to the sixth embodiment illustrated in FIG. In the following, the seventh embodiment will be described in detail with respect to the configuration different from that of the sixth embodiment, and the same reference numerals are used for the same configurations, and the detailed description thereof is omitted.

  The power supply device 10 includes a power generation device capable of supplying generated power to each building via a power line L4. The power supply device 10 is connected to the tenant power management device 9f via the network N. Then, the power supply device 10 supplies power to each building 2 under the control of the tenant power management device 9f.

  The tenant power management device 9f controls the power supply device 10 to supply power to the building 2 in response to a request from the terminal device 5ae of the tenant 3a or the building power management device.

  Specifically, the user of the tenant 3a, for example, when the power consumption amount is likely to exceed the tenant limit power amount, the tenant power management device 9f via the terminal device 5a is expected to exceed the power amount ( Supply desired information for requesting supply of desired electric energy) is transmitted. Then, the tenant power management apparatus 9f that has received the supply request information controls the power supply apparatus 10 so as to supply an amount of power corresponding to the desired supply power amount to the building 2 in which the tenant 3a that is the transmission source occupies. To do.

  In addition, the tenant power management device 9f sends the tenant limited power amount of the tenant 3a to the building power management device 4 of the building 2 in which the tenant 3a that is the transmission source of the supply request information moves, based on the desired supply power amount. The update request information to be updated is transmitted. The building power management apparatus 4 that has acquired the update request information updates the tenant limit power amount by adding the desired supply power amount to the tenant limit power amount of the tenant 3a.

  As described above, according to the configuration described above, in the tenant power management system according to the seventh embodiment, the tenant power management device 9f can receive from the power supply device 10 in response to a request from the user of the tenant 3a or the administrator of the building 2. Electric power can be supplied. Accordingly, when the tenant 3a and the building 2 are likely to exceed the tenant limit power amount and the building limit power amount, the tenant limit power amount and the building limit power amount are exceeded by receiving power supply from the power supply device. Power can be consumed without any problems.

  As mentioned above, although embodiment of this invention was described, this invention is not limited by embodiment. The present invention includes a combination of the above-described first to seventh embodiments as appropriate, and includes equivalents thereof.

  For example, the power measuring devices 7a to 7c illustrated in FIG. 1 may be connected to the building power management device 4 via the terminal devices 5a to 5c installed in the same tenant 3a to 3c. In this case, the power consumption measured by the power measuring devices 7a to 7c is transmitted to the building power management device 4 via the terminal devices 5a to 5c.

  Further, the terminal devices 5a to 5c and the power measuring devices 7a to 7c may not be installed in the tenants 3a to 3c. As long as the power measuring devices 7a to 7c can measure the power consumption of the tenants 3a to 3c, their installation locations are not limited. Similarly, as long as the terminal devices 5a to 5c can communicate with the building power management device 4 and the electric devices 6a to 6c, their installation locations are not limited.

  Further, in the above embodiment, the future predetermined period related to the sale and purchase of surplus power has been described as one day the next day, but the predetermined period is not limited thereto. For example, the future predetermined period may be for the next week. However, the longer the predetermined period, the lower the accuracy of power consumption prediction. Therefore, it is preferable to reduce the amount of surplus power that can be bought and sold as the predetermined period becomes longer.

  The building power management apparatus according to the present invention can be realized using a normal computer system, not a dedicated system. For example, a program for executing the above operation is stored in a computer-readable recording medium (CD-ROM, MO, etc.) and distributed to a computer connected to a network, and the program is distributed to the computer system. You may comprise the building power management apparatus which performs the above-mentioned process by installing.

  Further, the method for providing the program to the computer is arbitrary. For example, the program may be uploaded to a bulletin board (BBS) on a communication line and distributed to a computer via the communication line. The program may be transmitted by a modulated wave obtained by modulating a carrier wave with a signal representing the program, and a device that receives the modulated wave may demodulate the modulated wave to restore the program. Then, the computer activates this program and executes it in the same manner as other applications under the control of the OS. Thus, the computer functions as a building power management apparatus that executes the above-described processing.

DESCRIPTION OF SYMBOLS 1 Building power management system 2 Building 3a-3c Tenant 4, 4a-4d Building power management apparatus 410,410a-410d Control part 411 Building power consumption prediction part 412 Tenant restriction power acquisition part 413, 413a Surplus power acquisition part 414 Acquisition of purchase wish Unit 415, 415a Tenant limited power update unit 416 Immediate purchase wish acquisition unit 417 Immediate sale setting unit 418c Peak shift contribution acquisition unit 418d Energy saving contribution acquisition unit 419, 419d Electricity rate acquisition unit 420 Input unit 430 Display units 440, 440b 440d Storage unit 441 Tenant limit power information 442 Surplus power information 443 Sale power information 444 Immediate sale setting information 445 Peak shift contribution information 446 Energy saving contribution information 450 Communication units 5a to 5c, 5aa to 5ca, 5ab to 5cb, 5ae Terminal device 510, 10a to 510b, 510e Control unit 511 Desired purchase input control unit 512 Tenant limited power update unit 513 Device control unit 514 Surplus power input control unit 515 Immediate purchase desired input control unit 516 Immediate sale setting input control unit 517 Power consumption transmission unit 520 Input Unit 530 display unit 540 storage unit 541 tenant power limit information 550 communication unit 6a to 6c electric device 7a to 7c power measuring device 8, 8f tenant power management system 9, 9f tenant power management device 10 power supply device

Claims (15)

In a building where a plurality of tenants occupy, a building power management device that manages the power limit of the tenant,
Building power consumption prediction means for predicting the power consumption of the building in a predetermined period in the future;
Tenant limit power for acquiring the tenant limit power amount for the tenant in the future predetermined period for each tenant based on the power consumption amount predicted by the building power consumption prediction means and the predetermined limit power amount of the building Acquisition means;
Surplus power acquisition means for acquiring surplus power amount of the building in the future predetermined period based on the predetermined limit power amount of the building and the power consumption amount predicted by the building power consumption prediction means; Prepared,
Buy and sell the surplus power,
Building power management apparatus characterized by the above. Purchase request acquisition means for acquiring purchase request information indicating a purchase request of at least a part of the surplus power amount from the tenant user;
Based on the purchase request information and the surplus power amount, further comprising tenant power limit update means for updating the tenant power limit amount related to the purchase request information,
The building power management apparatus according to claim 1. In a building where a plurality of tenants occupy, a building power management device that manages the power limit of the tenant,
Building power consumption prediction means for predicting the power consumption of the building in a predetermined period in the future;
Tenant limit power for acquiring the tenant limit power amount for the tenant in the future predetermined period for each tenant based on the power consumption amount predicted by the building power consumption prediction means and the predetermined limit power amount of the building Acquisition means;
Surplus power acquisition means for acquiring, from the tenant user, surplus power amount representing at least a part of the power amount desired by the user for sale in the future predetermined period from the tenant limited power amount, ,
Buy and sell the surplus power,
Building power management apparatus characterized by the above. Purchase request acquisition means for acquiring purchase request information indicating a purchase request of at least a part of the surplus power amount from the tenant user;
Based on the purchase request information and the surplus power amount, tenant limited power update means for updating the tenant's power limit related to the purchase request information and the tenant power limit related to the surplus power amount; Further comprising
The building power management apparatus according to claim 3. The purchase request information includes a purchase request amount of electric energy that the tenant user desires to purchase,
The tenant limited power update means, when the purchase desire acquisition means acquires the purchase request information from users of a plurality of tenants, respectively, the surplus power amount in descending order of the purchase request amount included in the purchase request information. Determine the amount of power to be sold and the tenant of the seller, and update the determined power limit of the tenant based on the determined amount of power to sell.
The building power management apparatus according to claim 2, wherein the building power management apparatus is a building power management apparatus. Immediate purchase request acquisition means for acquiring immediate purchase request information including the amount of power desired to be purchased at a predetermined time including the current time from the tenant user;
Whether or not to sell the amount of power included in the immediate purchase request information from the tenant's limited power amount when the immediate purchase request information is acquired from the tenant user by the immediate purchase request acquisition means An immediate sale setting means for acquiring settings, and
The tenant limited power update means, when the immediate purchase request information is acquired by the immediate purchase request acquisition means, out of the tenants related to the settings to be sold among the settings acquired by the immediate sale setting means And the tenant's power amount to be sold, and based on the determined power amount to be sold, the power limit amount of the tenant of the selling source at the predetermined time and the power limit amount of the tenant related to the immediate purchase request information Update,
The building power management apparatus according to any one of claims 2, 4, and 5. Based on at least one of the amount of electric power sold or purchased by the tenant user in the future predetermined period, a peak shift contribution indicating a contribution to suppression of the peak of the power consumption of the building A peak shift contribution acquisition means for acquiring for each tenant;
The building power management apparatus according to any one of claims 2, 4 to 6. For each tenant, further comprising an energy saving contribution degree acquisition means for acquiring an energy saving contribution degree whose degree increases as the power consumption amount consumed by the tenant is smaller than the power consumption limit of the tenant.
The building power management apparatus according to any one of claims 2, 4 to 7. A building power management system comprising: the building power management apparatus according to any one of claims 2, 4 to 8, and a terminal device provided corresponding to the tenant and connected to the building power management apparatus. A system,
The terminal device includes a purchase request input control unit that receives input of the purchase request information from a corresponding tenant user and transmits the received purchase request information to the building power management device,
The purchase request acquisition means acquires the purchase request information from the terminal device;
Building power management system characterized by that. In a building in which a plurality of tenants occupy, a building power management device that manages the power limit of the tenant, a terminal device provided corresponding to the tenant and connected to the building power management device, and occupying the building A tenant power management system comprising a terminal device corresponding to a predetermined tenant and a tenant power management device connected via a network,
The building power management device
Building power consumption prediction means for predicting the power consumption of the building in a predetermined period in the future;
Tenant limit power for acquiring the tenant limit power amount for the tenant in the future predetermined period for each tenant based on the power consumption amount predicted by the building power consumption prediction means and the predetermined limit power amount of the building Acquisition means;
Surplus power acquisition means for acquiring surplus power amount of the building in the future predetermined period based on the predetermined limit power amount of the building and the power consumption amount predicted by the building power consumption prediction means; Prepared,
Buy and sell the surplus power,
The terminal device includes power consumption transmission means for transmitting power consumption information including power consumption of the predetermined tenant to the tenant power management device via the network,
The tenant power management device manages the power consumption information;
Tenant power management system characterized by that. In a building in which a plurality of tenants occupy, a building power management device that manages the power limit of the tenant, a terminal device provided corresponding to the tenant and connected to the building power management device, and occupying the building A tenant power management system configured to include a tenant power management apparatus connected to a terminal device corresponding to a predetermined tenant via a network, and a power supply unit capable of supplying generated power to the building,
The building power management device
Building power consumption prediction means for predicting the power consumption of the building in a predetermined period in the future;
Tenant limit power for acquiring the tenant limit power amount for the tenant in the future predetermined period for each tenant based on the power consumption amount predicted by the building power consumption prediction means and the predetermined limit power amount of the building Acquisition means;
Surplus power acquisition means for acquiring surplus power amount of the building in the future predetermined period based on the predetermined limit power amount of the building and the power consumption amount predicted by the building power consumption prediction means; Prepared,
Buy and sell the surplus power,
The tenant power management device includes power supply control means for supplying power by the power supply means to a building in which the predetermined tenant related to the power consumption information occupies based on the power consumption information,
The building power management device updates the power limit of the predetermined tenant based on the amount of power supplied by the power supply control means;
Tenant power management system characterized by that. In a building where a plurality of tenants occupy, a building power management method that is executed by a building power management device that manages the power limit of the tenant,
The building power management device includes building power consumption prediction means, tenant limited power acquisition means, and surplus power acquisition means,
The building power consumption prediction means predicts the amount of power consumption of the building in a predetermined period in the future;
Based on the power consumption predicted in the building power consumption prediction step and the predetermined power limit of the building, the tenant power limit acquisition unit limits the tenant in the future predetermined period for each tenant. Tenant limit power acquisition step for acquiring power amount,
The surplus power acquisition means acquires the surplus power amount of the building in the future predetermined period based on the predetermined limit power amount of the building and the power consumption amount predicted in the building power consumption prediction step. Surplus power acquisition step;
The building power management device buying and selling the surplus power;
A building power management method characterized by comprising: In a building where a plurality of tenants occupy, a building power management method that is executed by a building power management device that manages the power limit of the tenant,
The building power management device includes building power consumption prediction means, tenant limited power acquisition means, and surplus power acquisition means,
The building power consumption prediction means predicts the amount of power consumption of the building in a predetermined period in the future;
Based on the power consumption predicted in the building power consumption prediction step and the predetermined power limit of the building, the tenant power limit acquisition unit limits the tenant in the future predetermined period for each tenant. Tenant limit power acquisition step for acquiring power amount,
The surplus power acquisition means acquires from the tenant user a surplus power amount representing at least part of the tenant's limited power amount that the user desires to sell in the future predetermined period Power acquisition step;
The building power management device buying and selling the surplus power;
A building power management method characterized by comprising: In a building where multiple tenants occupy, a program for managing the power limit of the tenant,
Computer
Building power consumption prediction means for predicting the power consumption of the building in a predetermined period in the future,
Tenant limit power for acquiring the tenant limit power amount for the tenant in the future predetermined period for each tenant based on the power consumption amount predicted by the building power consumption prediction means and the predetermined limit power amount of the building Acquisition means,
Surplus power acquisition means for acquiring a surplus power amount of the building in the future predetermined period based on a predetermined power limit of the building and a power consumption amount predicted by the building power consumption prediction means;
Means for buying and selling the surplus power,
A program characterized by functioning as In a building where multiple tenants occupy, a program for managing the power limit of the tenant,
Computer
Building power consumption prediction means for predicting the power consumption of the building in a predetermined period in the future,
Tenant limit power for acquiring the tenant limit power amount for the tenant in the future predetermined period for each tenant based on the power consumption amount predicted by the building power consumption prediction means and the predetermined limit power amount of the building Acquisition means,
Surplus power acquisition means for acquiring, from the tenant user, a surplus power amount representing at least a part of the power amount desired to be sold by the user in the future predetermined period of the tenant's limited power amount;
Means for buying and selling the surplus power,
A program characterized by functioning as

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