JP6613981B2 - Residential power management system - Google Patents

Description

  The present invention relates to a residential power management system.

  A system described in Patent Document 1 is known as a system for managing power consumed in a house. The system includes a main breaker, a plurality of branch breakers, a branch current detection unit, a memory, a calculation unit, and a control unit.

  The plurality of branch breakers are respectively provided in branch electric circuits that branch from the secondary side of the main breaker and supply power to the devices. The branch current detector measures the current value supplied to the device via each branch breaker for each branch breaker. The memory stores power factor information corresponding to the power supply destination device for each branch breaker. The calculation unit calculates the amount of power for each branch breaker based on the current value detected by the branch current detection unit and the power factor information stored in the memory. A control part produces | generates the electric power information showing the electric energy for every branch breaker calculated by the calculating part, and transmits the produced | generated electric power information to a terminal device. The terminal device displays power information transmitted from the control unit.

  In the system described in Patent Document 1 configured as described above, it is possible to prompt a resident of the house to save energy by displaying power information on the terminal device. For example, when a relatively large amount of power is consumed in a device installed in a house, by allowing the resident to check the power information, the user can refrain from using the device and can purchase the power purchased from the power company. Actions to reduce as much as possible can be promoted (hereinafter, such resident actions are also simply referred to as “energy saving actions”).

Japanese Patent No. 4535052

  In addition to the power consumed by devices, studies are also underway on a system that displays power supplied from a power supply device provided in a house on a terminal device. In this system, the power supplied to the house from the power supply device provided in the house, such as a solar power generation device, a power storage device, or a vehicle having a battery, is displayed as power information. Further, when charging the power storage device or battery, the power supplied from the solar power generation device to the power storage device or battery is displayed as power information.

  By the way, in recent years, the manner of residence of houses has been diversified. In other words, not only “two-family houses” where two households with family relationships reside, but also “share houses” where multiple households without family relationships reside, and renting vacancies in houses to non-family members Various living modes such as, etc. can be seen.

  In general, at least one of the above-described solar power generation device, power storage device, and power supply device such as a vehicle having a battery is provided in each house. In houses where multiple households live, residents may not be able to confirm whether or not their own energy-saving behavior is sufficient for electricity supplied from only one source. . In this case, there is a concern that even if the power information is displayed, it does not lead to the resident's energy saving behavior.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a residential power management system capable of encouraging resident of each household to save energy in a house corresponding to the residence of a plurality of households. It is to provide.

In order to solve the above-described problems, a power management system for a house according to the present invention is a power control unit (202) for controlling power supply in a house (1) provided with a power supply device (13) corresponding to the residence of a plurality of households. And a display control unit (203) for displaying the power information of the house on the terminal device. A display control part divides | segments the value of the electric power supplied from an electric power supply apparatus based on a predetermined ratio, and displays the divided | segmented electric power value on a terminal device for every household. A plurality of households in which the value of power supplied from the power supply device is changed based on the ratio include a first household to which administrator authority is given in advance, and a second household to which administrator authority is not given. Is included. The display control unit changes the ratio based on the input operation of the terminal device corresponding to the first household, and prohibits the change of the ratio based on the input operation of the terminal device corresponding to the second household.

  According to the said structure, each household who lives in a house can confirm the value of the electric power supplied and divided | segmented from the electric power supply apparatus based on the display of a terminal device. That is, it can suppress that a resident recognizes that all the electric power supplied to a house from an electric power supply apparatus can be consumed only by the own household. As a result, it becomes possible to encourage the resident of each household to save energy.

  ADVANTAGE OF THE INVENTION According to this invention, the electric power management system of the house which can promote the energy-saving action to the resident of each household can be provided in the house corresponding to the residence of several households.

It is a block diagram which shows the house which concerns on embodiment. It is a perspective view which shows a terminal device. It is a figure which shows the login screen displayed on a terminal device. It is a figure which shows the screen for 1st households displayed on a terminal device. It is a figure which shows the screen for 2nd households displayed on a terminal device. It is a figure which shows the electric power generation distribution ratio displayed on a terminal device.

  Hereinafter, an embodiment of a residential power management system will be described. The house of the present embodiment is a so-called two-family house where a resident belonging to the first household H1 and a resident belonging to the second household H2 live.

  As shown in FIG. 1, the housing 1 of this embodiment includes distribution boards 10 a and 10 b, a meter 11, hot water supply devices 121 and 122, a solar power generation device 13, and a PCS (Power Conditioning System) 14. And.

  The solar power generation device 13 is disposed on the roof of the house 1. The solar power generation device 13 generates direct-current power by converting solar energy into direct-current power using a solar panel (not shown). The DC power generated by the solar power generation device 13 is supplied to the PCS 14.

  The PCS 14 converts the DC power generated by the solar power generation device 13 into AC power that can be used in the house 1. The AC power converted by the PCS 14 is supplied to the distribution board 10a.

  The distribution board 10a distributes AC power supplied from the power system 3 and the PCS 14 to the devices 30 to 33 and the distribution board 10b of the first household H1. The devices 30 and 31 are installed in the room R10 of the first household H1. The devices 32 and 33 are installed in the room R11 of the first household H1. The devices 30 to 33 are driven based on the supply of electric power from the distribution board 10a. The distribution board 10a has a function of detecting the power consumption of the devices 30 to 33. The distribution board 10 a also has a function of detecting the power supplied from the PCS 14, that is, the power generation amount of the solar power generation device 13.

  The distribution board 10b distributes the AC power supplied from the distribution board 10a to the devices 40 to 43 of the second household H2. The devices 40 and 41 are installed in the room R20 of the second household H2. The devices 42 and 43 are installed in the room R21 of the second household H2. The devices 40 to 43 are driven based on the supply of electric power from the distribution board 10b.

  The meter 11 is provided in the middle of the power line from the power system 3 to the distribution board 10a. The meter 11 detects the power consumption of the entire house 1.

  The hot water supply apparatuses 121 and 122 have a heat pump type configuration, and generate hot water using the heat of air. Hot water generated by the hot water supply device 121 is supplied only to the first household H1, and hot water generated by the hot water supply device 122 is supplied only to the second household H2. The hot water supply apparatuses 121 and 122 are connected to a power line from the meter 11 to the distribution board 10a. That is, power is directly supplied from the power system 3 to the hot water supply apparatuses 121 and 122. The hot water supply apparatuses 121 and 122 have a function of monitoring their own power consumption.

  The house 1 is provided with a power management system 2 that comprehensively manages the power state of the house 1. The power management system 2 includes a HEMS (Home Energy Management System) device 20, a wireless router 21, and terminal devices 22 and 23.

  The HEMS device 20 includes distribution boards 10a and 10b, a meter 11, hot water supply devices 121 and 122, devices 30 and 32 of the first household H1, devices 40 and 42 of the second household H2, and a local area network (LAN) 25. Via a communicable connection. The HEMS device 20 acquires various types of power information from the distribution boards 10a and 10b, the meter 11, and the hot water supply devices 121 and 122 via the LAN 25, and manages the power state of the house 1 based on the acquired power information.

  Specifically, the HEMS device 20 includes a storage unit 200, a management unit 201, a power control unit 202, and a display control unit 203.

  The management unit 201 manages the power information of the house 1. For example, the management unit 201 acquires power information indicated by the following (a1) to (a9).

(A1) The management unit 201 acquires information on the power consumption of the devices 30 to 33 from the distribution board 10a, and acquires information on the power consumption of the first household H1 based on the total of the information.
(A2) The management unit 201 acquires information on the power consumption of the devices 30 and 31 from the distribution board 10a, and acquires information on the power consumption of the room R10 of the first household H1 based on the total of these.
(A3) The management unit 201 obtains information on the power consumption of the devices 32 and 33 from the distribution board 10a, and obtains information on the power consumption of the room R11 of the first household H1 based on the sum of them.
(A4) The management unit 201 acquires information on the power consumption of the devices 40 to 43 from the distribution board 10b, and acquires information on the power consumption of the second household H2 based on the total of the information.
(A5) The management unit 201 obtains information on the power consumption of the devices 40 and 41 from the distribution board 10b, and obtains information on the power consumption of the room R20 of the second household H2 from the sum of them.
(A6) The management unit 201 obtains information on the power consumption of the devices 42 and 43 from the distribution board 10b, and obtains information on the power consumption of the room R21 of the second household H2 from the sum of them.
(A7) The management unit 201 acquires information on the power generation amount of the solar power generation device 13 from the distribution board 10a.
(A8) The management unit 201 acquires information on the power consumption of the entire house 1 from the meter 11.
(A9) The management unit 201 acquires information on the power consumption from the hot water supply apparatuses 121 and 122.

  The management unit 201 acquires the power information indicated by (a1) to (a9), and stores the current information and past information of the acquired power information in the storage unit 200. The storage unit 200 is a non-transitional tangible recording medium such as a semiconductor memory.

  In addition, the management unit 201 manages the operating states of the devices in the house 1 such as the hot water supply apparatuses 121 and 122 and the devices 30, 32, 40, and 42. Specifically, the management unit 201 communicates with the hot water supply apparatuses 121 and 122 and the devices 30, 32, 40, and 42 via the LAN 25 to monitor whether they are in a driving state or a stopped state. doing.

  The power control unit 202 controls power supply to the house 1. Specifically, the power control unit 202 controls power supply based on the balance between the power generated in the solar power generation device 13 and the power consumed by the device 30 of the house 1. For example, when the power supplied from the power supply device of the solar power generation device 13 to the home 1 is insufficient with respect to the power consumed in the home 1, the power control unit 202 supplies power from the power system 3. Control to receive. Moreover, when the electric power supplied to the house 1 from the power supply device of the solar power generation device 13 is larger than the electric power consumed in the house 1, the power control unit 202 sells surplus power to the electric power company. To control.

  The display control unit 203 controls display contents on the terminal devices 22 and 23. Specifically, the display control unit 203 causes the terminal devices 22 and 23 to display the power information of the house 1 managed by the management unit 201.

  The wireless router 21 is connected to the terminal devices 22 and 23 so as to perform wireless communication. The wireless router 21 is connected to the HEMS device 20 through a residential LAN 25 so as to be communicable. The wireless router 21 transmits information wirelessly transmitted from the terminal devices 22 and 23 to the HEMS device 20. Further, the wireless router 21 wirelessly transmits the information transmitted from the HEMS device 20 to the terminal devices 22 and 23.

  The terminal devices 22 and 23 are devices dedicated to the power management system 2. The terminal devices 22 and 23 are mainly configured of a microcomputer, and include a communication device (not shown) for performing wireless communication with the wireless router 21. As illustrated in FIG. 2, the terminal device 22 includes a touch panel 220 that displays various types of information related to the power management system 2. The terminal device 22 can perform an input operation by touching the touch panel 220. That is, the touch panel 220 also has a function as an operation unit.

  As shown in FIG. 1, the terminal device 22 is used by a resident of the first household H1. The terminal device 22 wirelessly transmits operation information for the touch panel 220 to the HEMS device 20 via the wireless router 21.

  The terminal device 23 has the same configuration as the terminal device 22. The terminal device 23 is used by a resident of the second household H2.

  The display control unit 203 of the HEMS device 20 transmits the power information of the house 1 to the terminal devices 22 and 23 based on the operation information transmitted from the terminal devices 22 and 23, so that the power information of the house 1 is displayed on the touch panel 220. Display.

  Next, the contents displayed on the terminal devices 22 and 23 by the display control unit 203 will be described with reference to FIGS. In addition, since the process performed by the display control unit 203 is the same regardless of which of the terminal devices 22 and 23 is operated, an example in which the terminal device 22 is operated will be described below.

  The display control unit 203 first displays the login screen G1 shown in FIG. The login screen G1 includes a screen for inputting an ID and a password. The first household H1 and the second household H2 input a unique ID and password given in advance to the login screen G1. The display control unit 203 causes the terminal device 22 to display power information corresponding to the unique ID and password.

  FIG. 4 shows a power information screen G10 that the display control unit 203 displays on the terminal device 22 when the ID and password given to the first household H1 are input on the login screen G1 of FIG. The power information screen G10 includes “power generation distribution amount” and “equipment consumption” as display items. On the right side of each display item, the power value corresponding to each display item is displayed. This value is an instantaneous value at the timing when the power information screen G10 is displayed, and changes with the situation.

  The “power generation distribution amount” indicates the maximum value of power that is appropriate to be consumed in the first household H <b> 1 among the power generated by the solar power generation device 13. This power information screen G10 indicates that 1.8 kW of the power generated by the solar power generation device 13 is the maximum value that is reasonable to be consumed in the first household H1.

  Further, “equipment consumption” indicates the power consumed in the devices 30 to 33 provided in the first household H1.

  The resident belonging to the first household H1 confirms the power information screen G10, and among the power generated by the solar power generation device 13, 1.8 kW is the maximum power that is reasonable to consume in the own household. It is confirmed that 2.0 kW of power is consumed in the devices 30 to 33 of the own household.

  In addition, the resident belonging to the first household H1 asks himself for an energy-saving action to suppress the power consumption for 0.2 kW because the power consumption in the devices 30 to 33 is larger than the power generation distribution amount of the own household. Can be confirmed.

  In addition to the display items such as “power generation distribution amount” and the like, icons A11 and A12 of “power generation distribution ratio change” and “logout” are displayed on the power information screen G10. Of these, the “change power distribution ratio” icon A11 is displayed only on the power information screen G10 of the first household H1 to which the administrator authority is given in advance.

  On the other hand, FIG. 5 shows a power information screen G11 that the display control unit 203 displays on the terminal device 22 when the ID and password given to the second household H2 are input on the login screen G1 of FIG. Yes. Similar to the power information screen G10 for the first household H1 described above, the power information screen G11 includes “power generation distribution amount” and “equipment consumption” as display items. Details of each display item are the same as those described for the power information screen G10. The value displayed on the right side of each display item is also an instantaneous value at the timing when the power information screen G11 is displayed, and changes with the situation.

  Here, the power information screen G11 shown in FIG. 5 is displayed at the same timing as the power information screen G10 shown in FIG. That is, as shown in the power information screen G10, at the timing when the power generation distribution amount in the first household H1 is 1.8 kW, the power generation distribution amount in the second household H2 is 1.2 kW.

  At this timing, the total power distribution amount of the first household H1 and the second household H2 is 3.0 kW. From this, the value of the power generated by the solar power generation device 13 excluding the amount sold to the electric power company is 3.0 kW, and the power for 3.0 kW can be supplied to the house 1. I know that there is. In addition, the display control unit 203 described above generates 1.8 kW of power corresponding to 60% of the 3.0 kW of power that can be supplied from the solar power generation device 13 to the house 1. It can be seen that 1.2 kW power corresponding to 40% is used as the power generation distribution amount of the second household H2.

  The resident belonging to the second household H2 confirms the power information screen G11, and among the power generated by the solar power generation device 13, the maximum value of power that is appropriate to be consumed in the own household is 1. It is confirmed that it is 2 kW and that the devices 40 to 43 consume 1.0 kW of power.

  In addition, the residents belonging to the second household H2 have their own energy saving behaviors appropriate from the viewpoint of suppressing power consumption because the power consumption in the devices 40 to 43 is smaller than the power generation distribution amount of their own households. I can confirm that there is.

  In addition to display items such as “power generation distribution amount”, each icon A13 of “logout” is displayed on the power information screen G10. As described above, since the resident belonging to the second household H2 is not given the administrator authority, the icon corresponding to “change power generation distribution ratio” on the power information screen G10 is not displayed.

  When the resident belonging to the first household H1 to whom the administrator authority is given selects the “change power generation distribution ratio” icon A11 shown in FIG. 4, the display control unit 203 displays the power information screen G12 shown in FIG. Is displayed on the terminal device 22. The power information screen G12 shows a ratio when the display control unit 203 divides the value of power supplied from the solar power generation device 13 into that of the first household H1 and that of the second household H2.

  The display control unit 203 changes the ratio based on the power consumption results of the first household H1 and the second household H2. Specifically, the display control unit 203 changes the ratio based on the integrated values of power consumption of the first household H1 and the second household H2 in a predetermined period (for example, one week).

  In the power information screen G12 shown in FIG. 6, 60% of the power supplied from the solar power generation device 13 is the power generation distribution amount of the first household H1, and the remaining 40% of the power is the second household H2. It is shown that the power generation distribution amount. This is determined based on the fact that the ratio of the integrated values of power consumption between the first household H1 and the second household H2 in the predetermined period was 6: 4. That is, the display control unit 203 changes the ratio so that the first household H1 having a large integrated value of power consumption in a predetermined period supplies larger power than the second household H2 having a small integrated value. .

  In addition, the power consumption of the hot water supply apparatuses 121 and 122 in the predetermined period can be used as the power consumption of the first household H1 and the second household H2 in the predetermined period. That is, the power consumption of the hot water supply device 121 that supplies hot water only to the first household H1 is used as the representative value of power consumption of the first household H1, and the second household H2 is used as the representative value of power consumption of the second household H2. The power consumption of the hot water supply apparatus 122 that supplies hot water only to the water can be used.

  The amount of hot water supplied by each of the water heaters 121 and 122 is generally proportional to the number of residents belonging to each of the first household H1 and the second household H2. The amount of hot water supplied is approximately proportional to the power consumption of each of the hot water supply apparatuses 121 and 122. That is, as the power consumption of each of the first household H1 and the second household H2 during the predetermined period, the power consumption of the hot water supply devices 121 and 122 during the predetermined period is used to each of the first household H1 and the second household H2. The ratio at the time of dividing the value of the electric power supplied from the solar power generation device 13 can be changed according to the ratio of the number of residents belonging.

  In addition, a “home” icon A14 for returning to the power information screen G10 shown in FIG. 4 and a change icon A15 are displayed on the power information screen G12. Residents belonging to the first household H1 who are given administrator authority can input the change icon A15. The display control unit 203 changes the ratio to what the resident desires based on the input operation of the resident belonging to the first household H1.

  As described above, according to the power management system 2, the power supplied from the solar power generation device 13 that is a power supply device is supplied to the first household H <b> 1 and the second household H <b> 2 that reside in the house 1. And the value of the electric power supplied from the solar power generation device 13 is divided based on a predetermined ratio, and the divided electric power value is displayed on the terminal devices 22 and 23 for each household.

  Thereby, the 1st household H1 and the 2nd household H2 which reside in the house 1 can confirm the value of the electric power supplied and divided | segmented from the solar power generation device 13 based on the display of the terminal devices 22 and 23. FIG. . That is, it can suppress that a resident recognizes that all the electric power supplied to the house 1 from the solar power generation device 13 can be consumed only by the said own household. As a result, it becomes possible to encourage the resident of each household to save energy.

  Further, the display control unit 203 can change the ratio when dividing the power value. Thereby, according to the relationship between the 1st household H1 and the 2nd household H2, the consumption condition of each electric power, etc., it becomes possible to divide | segment an electric power value appropriately.

  In addition, the display control unit 203 changes the ratio based on an input operation of a predetermined household among the first household H1 and the second household H2. As a result, it is possible to prevent the ratio from being inadvertently changed and inappropriate division of power values.

  Moreover, the display control part 203 changes a ratio based on each power consumption performance of the 1st household H1 and the 2nd household H2. Thereby, it becomes possible to divide | segment the value of electric power according to the actual condition of each power consumption of the 1st household H1 and the 2nd household H2.

  Further, the display control unit 203 changes the ratio based on the integrated value of the power consumption of each of the first household H1 and the second household H2 during a predetermined period. Thereby, it becomes possible to suppress the influence of noise due to sudden power consumption and to further divide the power value according to the actual power consumption of each of the first household H1 and the second household H2. .

  In addition, the display control unit 203 changes the ratio so that a large amount of power is supplied to a household with a large integrated value of power consumption in a predetermined period compared to a household with a small integrated value. Thereby, it is possible to divide the power value according to the magnitude of the integrated value of the power consumption of each household, and to suppress the power supplied from the power system 3.

  Moreover, the display control part 203 changes a ratio based on the power consumption in the predetermined period of the hot water supply apparatuses 121 and 122 which supply hot water to each of the 1st household H1 and the 2nd household H2. Thereby, it becomes possible to change the ratio at the time of dividing the value of electric power according to the ratio of the number of residents belonging to each of the first household H1 and the second household H2.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. The elements included in each of the specific examples described above and their arrangements are not limited to those illustrated, but can be changed as appropriate.

2: Power management system 121, 122: Hot water supply device 13: Solar power generation device (power supply device)
22, 23: Terminal device 202: Power control unit 203: Display control unit H1: First household H2: Second household

Claims (5)

  A power control unit (202) for controlling power supply in a house (1) corresponding to a residence of a plurality of households and equipped with a power supply device (13);
  A display control unit (203) for displaying power information of the house on a terminal device,
  The display control unit
The value of power supplied from the power supply device is divided based on a predetermined ratio, and the divided power value is displayed on the terminal device for each household.,
A plurality of households in which the value of the power supplied from the power supply device is changed based on the ratio are a first household to which administrator authority is given in advance, and a first household that is not given administrator authority. Including two households,
The ratio is changed based on the input operation of the terminal device corresponding to the first household, and the change of the ratio based on the input operation of the terminal device corresponding to the second household is prohibited., Residential power management system. The residential power management system according to claim 1 , wherein the display control unit changes the ratio based on a power consumption record of each of the plurality of households. The residential power management system according to claim 2 , wherein the display control unit changes the ratio based on an integrated value of power consumption of each of the plurality of households in a predetermined period. The electric power of a house according to claim 3 , wherein the display control unit changes the ratio so that a household with a large integrated value of power consumption in a predetermined period supplies a larger electric power than a household with a small integrated value. Management system. The residential power management system according to claim 3 , wherein the display control unit changes the ratio based on power consumption in a predetermined period of a hot water supply apparatus that supplies hot water to each of the plurality of households.

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