JP2017123749A - Power supply system and notification device of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply system and notification device of a building capable of suppressing occurrence of inconvenience, e.g., unexpected power supply stop, while supplying power properly, when supplying power from an external power supply during power outage.SOLUTION: A distribution board 20 is provided in a building 10, and power is supplied to the distribution board 20 from any one of a commercial power supply 11 and an external power supply device 17. The power supplied to the distribution board 20 is supplied to each electric apparatus L in the building 10 via multiple branch circuits 28. A branch breaker 22 is provided for each branch circuit 28 in the distribution board 20. A controller 36 determines to which branch circuit 28 the power from the external power supply device 17 is supplied, based on the power consumption of the electric apparatus L for each branch circuit 28 measured by each power sensor 31, and the power supply capability of the external power supply device 17 inputted by an operating section 37. A display 32 corresponding to the branch breaker 22 of a branch circuit 28, determined as the power supply destination thereof, is made to emit light.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a building power supply system and a notification device.

  Generally, a distribution board is provided in a building such as a house. The distribution board is supplied with commercial power from a power company through a transmission line, etc., and the supplied commercial power is supplied from the distribution board to various electric loads (home appliances, lighting equipment, etc.) in the building. The A plurality of branch circuits are connected to the distribution board, and commercial power is supplied from the distribution board to each electric load via these branch circuits.

  In recent years, there has been a technology for supplying power to various electrical loads in a building using a power supply device (hereinafter referred to as an external power supply device) that is different from the commercial power supply system so that the power can be used in the building even in the event of a power failure due to a disaster. It has been proposed (see, for example, Patent Document 1). In this case, for example, it is conceivable that an external power supply device is connected to the upstream side of the distribution board, and power is supplied from the connected external power supply apparatus to each electric load via the distribution board (and branch circuit). In addition, it is possible to use a motor vehicle, a small generator, etc. as an external power supply device.

JP 2006-158084 A

  By the way, it is conceivable that the power supply capability of the external power supply device is smaller than the power supply capability of the commercial power supply. Therefore, when power is supplied from the external power supply device to the electrical load in the building, there is a possibility that the power demand (power consumption) of the electrical load is excessive with respect to the power supply capability (power supply capacity) of the external power supply device. In that case, there is a possibility that inconveniences such as suddenly stopping power feeding by the external power supply device may occur.

  Therefore, when power is supplied from the external power supply device, for example, it is conceivable to supply power only to an electric load that is frequently used. That is, it can be considered that power is supplied only to the branch circuit to which the electrical load is connected among the branch circuits connected to the distribution board. In that case, it becomes possible to avoid the above-mentioned problem that the power demand is excessive with respect to the power supply capability of the external power supply device.

  However, it is considered difficult to specify a branch circuit to which an electrical load that is frequently used is connected when power is supplied from an external power supply device.

  The present invention has been made in view of the above circumstances, and when power is supplied from an external power source during a power failure (when power cannot be supplied from a commercial power supply), the power supply is unexpectedly stopped while properly supplying the power. The main object of the present invention is to provide a building power supply system and a notification device that can prevent such inconveniences.

  In order to solve the above problems, the building power supply system according to the first invention can be selectively connected to a commercial power source and an external power source different from the commercial power source, and power is supplied from the connected power source. An electrical panel, a plurality of branch circuits that distribute and supply electric power supplied to the distribution panel to electrical equipment in a building, and each branch circuit in the distribution panel, each of which opens and closes the branch circuit A power supply system for a building comprising a plurality of possible branch breakers, measuring means for measuring the power consumption of the electrical equipment for each branch circuit when power is supplied from the commercial power supply, and the external power supply When supplying power from, the acquisition means for acquiring the power supply capability of the external power supply, the power consumption of the electrical device for each branch circuit measured by the measurement means, and acquired by the acquisition means Determining means for determining which of the branch circuits to supply power from the external power supply based on the power supply capability of the external power supply; and the branch circuit determined as a power supply destination by the determining means And a notifying control means for notifying which of the branch breakers is a notifying means.

  According to the present invention, the electric power from the external power source is calculated based on the power consumption of the electrical equipment for each branch circuit measured when supplying power from the commercial power source and the power supply capability of the external power source acquired by the acquiring unit. Which of the branch circuits is to be supplied is determined. In this case, the branch circuit of the power supply destination can be determined so that the power consumption of each electric device does not exceed the power supply capability of the external power supply. In addition, it is possible to preferentially determine a branch circuit that supplies power to an electric device that is frequently used (power consumption frequency) as a power supply destination.

  In addition, since the notification means notifies the branch breaker of the branch circuit determined as the power supply destination, the user closes the notified branch breaker and opens the other branch breakers. By setting the state, it is possible to supply power from the external power source only to the determined branch circuit. As a result, when power is supplied from the external power supply, it is possible to suppress the occurrence of inconvenience such as unexpected stop of the power supply while appropriately performing the power supply.

  In the building power supply system according to a second aspect of the present invention, in the first aspect, the notification means is a plurality of light emitting units provided for each of the branch breakers, and the notification control means determines the determination as the notification processing. The light emitting unit corresponding to the branch breaker of the branch circuit determined by the means as the power supply destination is caused to emit light.

  According to this invention, the light emission part is provided for every branch breaker. Then, when the branch circuit of the power supply destination is determined by the determining means, the branch circuit breaker of the determined branch circuit is notified by the light emitting unit corresponding to the circuit breaker emitting light. In this case, it is possible to easily determine which branch breaker is to be closed or opened.

  In a building power supply system according to a third aspect of the present invention, in the first aspect, the notification means is a plurality of light emitting units provided for each of the branch breakers, and the notification control means determines the determination as the notification processing. Each light emitting part is caused to emit light such that the light emitting part corresponding to the branch breaker of the branch circuit determined as a power supply destination by the means and the other light emitting parts have different light emission modes.

  According to the present invention, when informing which branch breaker of the branch circuit determined as the power supply destination is, the light emission mode is different between the light emitting unit corresponding to the branch breaker and the other light emitting units. Each light emitting part emits light. Also in this case, it is possible to easily determine which branch breaker is in the closed state or in the open state due to the difference in the light emission mode.

  The building power supply system according to a fourth aspect of the present invention is the power supply system for buildings according to the first to third aspects of the invention, based on the power consumption of the electrical equipment for each branch circuit measured by the measuring means. Use frequency determining means for determining the frequency of use of the device, wherein the determining means determines the power from the external power source based on the frequency of use of the electrical device for each branch circuit determined by the use frequency determining means. It is characterized by determining whether to supply to the branch circuit.

  According to the present invention, the usage frequency of the electrical device for each branch circuit is determined based on the power consumption of the electrical device for each branch circuit, and the external power source is determined based on the determined usage frequency of the electrical device for each branch circuit. To which branch circuit the power from is supplied. In this case, it is possible to preferentially determine the branch circuit that supplies power to the frequently used electrical device as the power supply destination from the external power source. For this reason, it is possible to ensure the use of frequently used electrical equipment, and it is possible to spend a relatively inconvenience in an emergency.

  The building power supply system according to a fifth aspect of the present invention is that, in the fourth aspect of the invention, one day is divided into a plurality of time zones, and the usage frequency determining means Determining the frequency of use of the electrical equipment, wherein the determining means branches any power from the external power source based on the frequency of use of the electrical equipment for each branch circuit in the determined current time zone. It is characterized by determining whether to supply to a circuit.

  By the way, it is conceivable that the frequency of use of electrical equipment varies depending on the time of day. For example, air conditioning equipment is often used during daytime hours, and lighting equipment is often used during nighttime hours. In view of this point, the present invention determines which branch circuit the power from the external power supply is supplied to based on the frequency of use of the electrical device in the current time zone. In this case, if the current time zone is a night time zone, the branch circuit for lighting equipment that is frequently used during that night time zone will be given priority as the power supply destination. The branch circuit of the power supply destination can be determined in consideration of the usage situation.

  A building power supply system according to a sixth aspect of the present invention includes, in any one of the first to fifth aspects, a season determination unit that determines a current season, wherein the determination unit is a current level determined by the season determination unit. Based on the season, it is determined to which branch circuit the power from the external power source is supplied.

  By the way, it is thought that the frequency with which an air-conditioning apparatus (air-conditioning apparatus) is used as an electric device in summer and winter increases. In view of this point, the present invention determines which branch circuit the power from the external power supply is supplied to based on the current season. In this case, for example, when the current season is summer or winter, the branch circuit (air conditioning circuit) to which the air conditioner is connected can be preferentially determined as the power supply destination from the external power source. As a result, the use of air-conditioning equipment can be ensured in summer and winter, so that it is possible to spend comfortably in an emergency.

  According to a seventh aspect of the present invention, there is provided a notification device capable of being selectively connected to a commercial power supply and an external power supply different from the commercial power supply, and a power distribution board supplied with power from the connected power supply, and supplying the power distribution board A plurality of branch circuits that distribute the power to be distributed to the electrical equipment in the building, and a plurality of branch breakers that are provided for each of the branch circuits in the distribution board and that can open and close the branch circuits, respectively. An apparatus main body applied to a building and configured to be portable, a plurality of measuring means detachably attached to each branch circuit, and detachably provided around each branch breaker in the distribution board A plurality of light emitting units, and the plurality of measuring means measure power consumption of the electric device for each branch circuit when power is supplied from the commercial power source. For each branch circuit measured by each measuring means, an operating section for performing an input operation of the power feeding capacity of the external power supply, an acquisition means for obtaining the power feeding capacity of the external power supply based on an input operation by the operating section Based on the power consumption of the electrical device and the power supply capability of the external power source acquired by the acquiring unit, the power is supplied to any of the branch circuits when power is supplied from the external power source. And a notification control for notifying which branch breaker is caused by causing the light emitting unit corresponding to the branch breaker of the branch circuit determined as a power supply destination to emit light. And means.

  According to the notification device of the present invention, the device main body is configured to be portable, and the measuring means and the light emitting unit are configured to be detachable. In this case, a power supply system similar to that of the above-described second invention can be constructed by bringing a notification device into an existing building and attaching the measuring means and the light emitting unit to a branch circuit or the like. Thereby, it is possible to construct a power supply system relatively easily even for an existing building.

  In addition, a system that enables power supply from an external power source may be introduced later by renovating an existing building. Even in such a case, the notification device of the present invention is used when the system is introduced. Can be brought into the building to construct a power supply system.

The figure which shows the electric constitution of an electric power feeding system. The flowchart which shows the control process before electric power feeding. The figure which shows the electric constitution of the electric power feeding system in other embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an electrical configuration of the power feeding system.

  As shown in FIG. 1, commercial power is supplied to a building 10 from a commercial power supply 11. The commercial power source 11 is configured to include a power plant, power transmission equipment, power distribution equipment, and the like, and is a facility in which an operator such as an electric power company supplies commercial power such as grid power to a power consumer such as a resident. The building 10 includes a power meter 13 connected to the commercial power supply 11 via a power transmission line 12, a switching device 15 connected to the power meter 13 via a power line 14, and the switching device 15 and the power line 16. And a distribution board 20 connected to each other. As a result, commercial power is supplied from the commercial power supply 11 to the distribution board 20 via the power transmission line 12, the power lines 14, 16, and the like, and eventually supplied from the distribution board 20 to the electrical equipment L in the building 10. ing.

  The switching device 15 switches the supply source of electric power supplied to the distribution board 20 (and eventually the electric equipment L in the building 10). In the building 10 of the present embodiment, when a power failure occurs due to a disaster or the like, an external power supply device 17 is connected to the building 10 as an emergency power supply, and power is supplied to the building 10 from the external power supply device 17 in the connected state. Is possible. When the external power supply device 17 is connected to the building 10, the supply source that supplies power to the distribution board 20 can be switched from the commercial power supply 11 to the external power supply device 17 by the switching device 15. Yes.

  In the present embodiment, an automobile having an external power feeding function is assumed as the external power supply device 17, and a hybrid automobile (PHV) equipped with an in-vehicle battery is assumed in detail. Therefore, at the time of a power failure of the building 10, the hybrid vehicle (specifically, an in-vehicle battery) is connected to the building 10, and power is supplied from the hybrid vehicle to the building 10.

  The external power supply device 17 can be connected to the building 10 via the power supply cable 25. The power supply cable 25 has a pair of connectors 25a and 25b at both ends thereof. One of the connectors 25a and 25b is connected to a connection port (not shown) provided in the external power supply device 17 (hybrid vehicle), and the other connector 25b is connected to a connection plug 26 provided in the building 10. By being connected, the external power supply device 17 is connected to the building 10 (specifically, the connection plug 26).

  The connection plug 26 is connected to the switching device 15 via the power line 27. Therefore, in a state where the external power supply device 17 is connected to the connection plug 26 via the power supply cable 25, power (external power) is supplied from the external power supply device 17 to the switching device 15 via the power supply cable 25 and the power line 27. . The switching device 15 can be manually switched to a first position (normal position) where the power line 14 and the power line 16 are connected and a second position (emergency position) where the power line 27 and the power line 16 are connected. It has become. When the switching device 15 is switched to the second position, the electric power from the external power supply device 17 is supplied to the distribution board 20 via the power supply cable 25 and the power lines 16 and 27, and further supplied to each electric device L in the building 10. Is done.

  The distribution board 20 includes a main breaker 21 and a plurality of branch breakers 22. The main breaker 21 is connected to the switching device 15 via the power line 16. Power is supplied to the main breaker 21 from either the commercial power supply 11 or the external power supply device 17 via the switching device 15. The main breaker 21 cuts off the supply of electric power to the downstream side when the supplied electric power exceeds a predetermined capacity specified in advance.

  A plurality of branch power lines 28 are connected to the downstream side of the main breaker 21. Each of the plurality of branch power lines 28 is connected to an electric device (electric load) L in the building 10. When electric power is supplied from the commercial power supply 11 or the external power supply device 17 to the distribution board 20 (main circuit breaker 21), the electric power is supplied to each electric device L via these branch power lines 28. And each electric equipment L act | operates with the supplied electric power. Note that examples of the electric device L include lighting devices, air conditioning devices, and home appliances.

  Here, each branch power line 28 corresponds to a branch circuit, and in the following, these branch power lines 28 will be referred to as branch circuits 28, respectively. As the branch circuit 28, a lighting circuit to which a lighting device is connected, an air conditioning circuit to which an air conditioning device (air conditioner) having an air conditioning function is connected, a living circuit to which each home appliance provided in the living room is connected, etc. Is provided.

  A branch breaker 22 is provided for each branch circuit 28. Each branch breaker 22 can open and close the (corresponding) branch circuit 28 by manual operation. When the branch breaker 22 is in the closed state (ON state), the power supplied to the main breaker 21 (and thus the distribution board 20) is supplied to the electric equipment L through the branch circuit 28, while the branch breaker 22 Is in an open state (OFF state), the power supply to the electrical device L through the branch circuit 28 is interrupted (prohibited). The branch breakers 22 are arranged in two upper and lower rows, and a plurality of branch breakers 22 are arranged side by side in each of the upper and lower rows.

  Here, it is conceivable that the power supply capability of the external power supply device 17 is smaller than the power supply capability of the commercial power supply 11. Therefore, when power is supplied to each electrical device L in the building 10 using the external power supply device 17, it is assumed that the power consumption of each electrical device L is excessive with respect to the power supply capability of the external power supply device 17, In that case, there is a possibility that inconvenience such as suddenly stopping the power supply by the external power supply device 17 may occur. Therefore, this power supply system is provided with a characteristic configuration in order to avoid the inconvenience that occurs when power is supplied by the external power supply device 17. The characteristic configuration will be described below.

  In the building 10, a power sensor 31 is provided for each branch circuit 28. The power sensor 31 measures the power supplied to the electric device L through the branch circuit 28. Since the electric power supplied to the electric device L through the branch circuit 28 is consumed by the electric device L, the power consumption of the electric device L in the branch circuit 28 is measured by the power sensor 31 in this case. Therefore, the power consumption of the electric device L is measured for each branch circuit 28 by each of the power sensors 31. Each power sensor 31 corresponds to a measuring unit.

  Each power sensor 31 is provided on the distribution board 20. Each power sensor 31 is provided adjacent to the branch breaker 22 of the branch circuit 28 to be measured. Specifically, among the branch breakers 22 arranged in two upper and lower rows, the branch breaker 22 arranged in the upper row has a power sensor 31 arranged adjacent to the upper portion thereof, and the branch arranged in the lower row. A power sensor 31 is disposed adjacent to the breaker 22 below the breaker 22.

  The distribution board 20 is provided with a display 32 for each branch breaker 22. The indicator 32 is a light emitting indicator lamp composed of an LED (light emitting diode) or the like. In this embodiment, the display device 32 is provided integrally with the power sensor 31 and emits light by the power of the battery included in the power sensor 31. Each display 32 corresponds to a light emitting unit. Each indicator 32 constitutes a notification means.

  Each indicator 32 is provided adjacent to the branch breaker 22. In this embodiment, since the display device 32 is provided integrally with the power sensor 31, the display breaker 22 is disposed adjacent to the branch breaker 22 disposed in the upper row, and the lower row. An indicator 32 is disposed adjacent to the branch breaker 22 disposed in the lower part of the branch breaker 22.

  The indicator 32 is not necessarily provided integrally with the power sensor 31, and may be provided separately. Moreover, the arrangement | positioning aspect of each indicator 32 is not necessarily limited to said aspect, For example, it adjoins the upper part with respect to each branch breaker 22 arrange | positioned at each row | line | column of upper side and lower side, and the indicator 32 is provided. Alternatively, the display 32 may be arranged adjacent to the lower side thereof. Furthermore, instead of adjoining the upper and lower sides of each branch breaker 22, the display device 32 may be arranged adjacent to either the left or right of each branch breaker 22. In short, as long as it is known which branch breaker 22 is arranged for each indicator 32, the arrangement mode may be arbitrary.

  The building 10 is provided with a management server 35 that manages the power supply system. The management server 35 includes a controller 36 and an operation unit 37. The controller 36 is constituted by a known microcomputer having a CPU and the like, and has a storage unit 36a. The operation unit 37 includes a keyboard and the like, and is connected to the controller 36.

  Each power sensor 31 is connected to the controller 36. The power consumption of the electrical equipment L in each branch circuit 28 is input from the power sensors 31 to the controller 36. In the present embodiment, at the time of commercial power supply in which power (commercial power) is supplied from the commercial power supply 11 to each electrical device L in the building 10, the electrical devices L in each branch circuit 28 are sequentially sent from these power sensors 31 to the controller 36. The power consumption is input. And the controller 36 memorize | stores the power consumption of the electric equipment L for every those branch circuit 28 input in the memory | storage part 36a each time. Specifically, the controller 36 stores the power consumption for each branch circuit 28 in the storage unit 36a in association with the time zone (time) when the power is consumed. Thereby, the power consumption of the electric equipment L for each branch circuit 28 is stored in the storage unit 36a as a power consumption history in time series.

  Each display device 32 is connected to the controller 36. The controller 36 controls the light emission of each display 32 based on the power consumption history for each branch circuit 28 stored in the storage unit 36a. In FIG. 1, for convenience, the signal lines from the controller 36 to the respective indicators 32 are indicated by signal lines that are common to the signal lines from the respective power sensors 31 to the controller 36.

  Next, when power is supplied to the building 10 (electric equipment L) using the external power supply device 17 in the event of a power failure, a pre-power supply control process executed by the controller 36 prior to the power supply will be described. FIG. 2 is a flowchart showing the pre-power supply control process. Note that this process is triggered by the start operation performed by the operation unit 37 by the user. Prior to starting this process, the external power supply device 17 is connected in advance to the building 10 side.

  As shown in FIG. 2, first, in step S <b> 11, it is determined whether or not an input operation of the power supply capability (rated output) of the external power supply device 17 is performed by the operation unit 37. Specifically, an input request screen for requesting input about the power supply capability of the external power supply device 17 is displayed on the display of the management server 35, and whether or not the power supply capability of the external power supply device 17 is input by the user based on the display. Determine whether. If the power supply capability of the external power supply device 17 is not input, the determination in this step is repeated until it is input. On the other hand, when the power supply capability of the external power supply device 17 is input, the input power supply capability is acquired (step S12).

  In step S13, the power consumption history of each branch circuit 28 is read (obtained) from the storage unit 36a.

  In step S14, the current time zone is determined. Here, one day is divided into a plurality of time zones, specifically, divided into a daytime time zone and a night time zone. Therefore, in this step, it is determined whether the current time zone is a daytime zone or a nighttime zone. In this case, for example, it is conceivable that the current date and time information is acquired from a timer built in the controller 36, and it is determined (acquired) whether the current time is the daytime time zone or the nighttime zone based on the acquired date and time information.

  In step S15, based on the power consumption history of each branch circuit 28 read in step S13, the usage frequency of the electrical device L is determined for each branch circuit 28. Specifically, the usage frequency of the electrical device L for each branch circuit 28 in the current time zone is determined. For example, the usage frequency of the electrical device L for each branch circuit 28 may be determined based on the power consumption time of the electrical device L for each branch circuit 28.

  In step S16, the current season is determined. For example, the current date / time information is acquired from the above-described built-in timer, and based on the acquired date / time information, it is determined whether the current season is spring, summer, autumn, or winter.

  In step S <b> 17, supply destination determination processing for determining which of the branch circuits 28 the power from the external power supply device 17 is supplied to is performed. In this process, the power supply capability of the external power supply device 17 acquired in step S12, the power consumption history of the electric device L for each branch circuit 28 acquired in step S13, and the electric device L for each branch circuit 28 determined in step S15. The branch circuit 28 serving as a power supply destination is determined based on the current use frequency and the current season determined in step S16. In this determination process, for example, the following processes (a) to (c) are performed.

  (A) First, based on the power supply capability of the external power supply device 17 and the power consumption history (power consumption) of the electrical device L for each branch circuit 28, the power consumption of each electrical device L is It is conceivable to determine the branch circuit 28 that is the power supply destination so as not to exceed the power supply capability.

  (B) Moreover, based on the usage frequency of the electric equipment L for every branch circuit 28, it is possible to preferentially determine the branch circuit 28 to which the electric equipment L with high usage frequency is connected as a power supply destination. Specifically, based on the usage frequency of the electrical device L for each branch circuit 28 in the current time zone, power is given priority to the branch circuit 28 to which the electrical device L having a high usage frequency is connected in the current time zone. It is possible to decide as a supplier. For example, when the current time zone is a daytime zone, it may be considered that the branch circuit 28 (air conditioning circuit) for air conditioning equipment that is frequently used in the daytime zone is given priority as the power supply destination. . Further, when the current time zone is a night time zone, the branch circuit 28 (lighting circuit) for lighting equipment that is frequently used in the night time zone may be preferentially used as the power supply destination. .

  (C) If the current season is summer or winter, it may be possible to prioritize the air conditioning circuit as the power supply destination.

  In step S18, a notification process for notifying which of the branch breakers 22 of the branch circuit 28 determined as the power supply destination in step S17 is performed. In this notification process, this notification is performed by turning on (emitting) the indicator 32 corresponding to the branch breaker 22 of the branch circuit 28 determined as the power supply destination. After this notification process, this process ends.

  By the notification process, the user sets the notified branch breaker 22 in the closed state (ON state) and the other branch breaker 22 in the open state (OFF state), thereby determining the branch circuit determined as the power supply destination. Only 28 can be supplied with power from the external power supply device 17. Then, after opening and closing each branch breaker 22 as described above, the user switches the switching device 15 from the first position to the second position. As a result, power is supplied from the external power supply device 17 to each branch circuit 28 as a power supply destination via the distribution board 20. Specifically, the power from the external power supply device 17 is supplied only to the branch circuit 28 determined as the power supply destination, and is not supplied to the other branch circuits 28.

  As mentioned above, according to the structure of this embodiment explained in full detail, the following outstanding effects are acquired.

  The power consumption (specifically, power consumption history) of the electric device L for each branch circuit 28 measured by the power sensor 31 when power is supplied from the commercial power supply 11 and the external power supply device 17 acquired based on the input operation of the operation unit 37. Based on the power supply capability, it was determined which of the branch circuits 28 the power from the external power supply device 17 was supplied to. In this case, the branch circuit 28 of the power supply destination can be determined so that the power consumption of each electric device L does not exceed the power supply capability of the external power supply device 17. Further, the branch circuit 28 connected to the electrical device L having a high usage frequency (power consumption frequency) can be preferentially determined as the power supply destination.

  In addition, since the notification means (specifically, the plurality of indicators 32) notifies the branch breaker 22 of the branch circuit 28 determined as the power supply destination, the user can notify the notified branch breaker 22. Is closed, and other branch breakers 22 are opened, so that power from the external power supply device 17 can be supplied only to the determined branch circuit 28. As a result, when power is supplied from the external power supply device 17, it is possible to suppress the occurrence of inconvenience such as the power supply being unexpectedly stopped while appropriately performing the power supply.

  Moreover, since this power supply system is a system using existing equipment (distribution panel 20 having branch breaker 22), it is not necessary to introduce a particularly large-scale device. Therefore, the above-described effects can be obtained with a relatively simple configuration.

  As the notification means, a plurality of indicators 32 are provided for each branch breaker 22, and the indicator 32 corresponding to the branch breaker 22 of the branch circuit 28 determined as the power supply destination is caused to emit light during the notification process. In this case, it is possible to easily determine which branch breaker 22 is to be closed or opened.

  Based on the power consumption (specifically, power consumption history) of the electrical equipment L for each branch circuit 28 measured by the power sensor 31, the usage frequency of the electrical equipment L for each branch circuit 28 is determined, and for each determined branch circuit 28. Based on the frequency of use of the electrical device L, the branch circuit 28 that is the power supply destination from the external power supply device 17 is determined. In this case, the branch circuit 28 that supplies power to the electrical equipment L that is frequently used can be preferentially determined as the power supply destination from the external power supply device 17. For this reason, it is possible to ensure the use of the electric device L having a high frequency of use, and it is possible to spend a relatively inconvenient time in an emergency.

  The usage frequency of the electrical device L for each branch circuit 28 in the current time zone is determined, and the power supply destination from the external power supply device 17 is based on the determined usage frequency of the electrical device L in the current time zone. The branch circuit 28 was determined. In this case, if the current time zone is a night time zone, the branch circuit (lighting circuit) for lighting equipment that is frequently used during that night time zone will be given priority as the power supply destination, etc. The branch circuit 28 of the power supply destination can be determined in consideration of the usage status of each electrical device L.

  The current season is determined, and the branch circuit 28 as the power supply destination from the external power supply device 17 is determined based on the determined current season. In this case, for example, when the current season is summer or winter, the branch circuit 28 (air conditioning circuit) to which the air conditioner is connected may be preferentially determined as the power supply destination from the external power supply device 17. it can. As a result, the use of air-conditioning equipment can be ensured in summer and winter, so that it is possible to spend comfortably in an emergency.

  The present invention is not limited to the above embodiment, and may be implemented as follows, for example.

  (1) In the above embodiment, when informing which of the branch breakers 22 of the branch circuit 28 determined as the power supply destination is, the indicator 32 corresponding to the branch breaker 22 is caused to emit light. This may be changed. For example, it is considered that the indicators 32A and 32B emit light so that the indicator 32A corresponding to the branch breaker 22 of the branch circuit 28 as the power supply destination and the other indicator 32B have different light emission modes. It is done. Specifically, it is conceivable that the light emission colors of the respective indicators 32A and 32B are made different from each other, or one of the indicators 32A and 32B is turned on and the other is blinked. Also in this case, it is possible to easily determine which branch breaker 22 is in the closed state or in the open state due to the difference in the light emission mode.

  Further, it is not always necessary to use the display 32 (light emitting unit) as the notification means. For example, a display display may be provided as a notification unit, and the display display may indicate which branch breaker 22 of the branch circuit 28 is a power supply destination. Further, an audio output device such as a speaker may be provided as a notification unit, and the branch breaker 22 of the branch circuit 28 serving as a power supply destination may be notified by sound output from the device.

  (2) For example, instead of determining the usage frequency of the electrical device L for each branch circuit 28 for each time zone, the frequency may be determined for each predetermined period (for example, one day). Then, the branch circuit 28 that is the power supply destination may be determined based on the usage frequency of the electrical device L for each branch circuit 28 in the determined predetermined period.

  Further, it is not always necessary to determine the branch circuit 28 that is the power supply destination based on the frequency of use of the electrical equipment L for each branch circuit 28. For example, a priority order may be set in advance for the branch circuit 28 that supplies power from the external power supply device 17, and the branch circuit 28 that is the power supply destination may be determined according to the set priority order. In this case, it is conceivable that the branch circuit 28 to which the frequently used electrical device L is connected sets the priority higher, and the branch circuit 28 to which the less frequently used electrical device L is connected sets the priority lower. . Then, since the branch circuit 28 to which the frequently used electric device L is connected can be preferentially determined as the power supply destination, it is possible to ensure the use of the frequently used electric device L even in an emergency. .

  (3) In the above embodiment, the branch circuit 28 to be the power supply destination is determined based on the current season, but this is changed, and the power supply destination is determined based on the current in-building temperature or outdoor temperature. The branch circuit 28 may be determined. In this case, it can be considered that the temperature in the building or the outdoor temperature is detected by a temperature sensor. According to such a configuration, when the temperature in the building or the outdoor temperature is high or low, the air conditioning circuit can be preferentially determined as the power supply destination from the external power supply device 17. Thereby, since the use of the air conditioner (air conditioner) can be ensured at a high temperature or a low temperature, it can be comfortably spent in an emergency.

  (4) Based on the power consumption of the electrical device L for each branch circuit 28 immediately before the occurrence of a power failure, the usage status of the electrical device L at the time of the power failure is determined for each branch circuit 28, and power is supplied based on the determination result. The previous branch circuit 28 may be determined. In this case, it is possible to use the same electrical device L as before the occurrence of the power failure by determining the branch circuit 28 to which the electrical device L used at the time of the power failure is connected as the power supply destination.

  (5) In the above embodiment, the power supply capability of the external power supply device 17 is acquired based on an input operation by the user, but this is changed and the power supply capability of the external power supply device 17 is stored in the storage unit 36a in advance. You may acquire the said electric power feeding capability by reading from this memory | storage part 36a.

  (6) Although the hybrid vehicle (PHV) is used as the vehicle (external power supply device 17) that supplies power to the building 10 side in the above embodiment, this is changed to an electric vehicle (EV) or a fuel cell hybrid vehicle. (FCHV) may be used.

  Further, it is not always necessary to use an automobile as the external power supply device 17, and for example, a small generator or a fuel cell may be used. In that case, the power generated by the small generator or the fuel cell is supplied to the building 10 side. Further, a power storage device may be used as the external power supply device 17. In that case, the stored power stored in the power storage device is supplied to the building 10 side. In any case, when power is supplied from the external power supply 17 to the building 10 side, the power supply capability (rated output) of the external power supply 17 is input.

  (7) FIG. 3 shows another example of the power feeding system. In the power supply system shown in FIG. 3, a system that enables power supply from the external power supply device 17 (specifically, the switching device 15, the power line 27, etc.) is introduced into the building 10 later by renovation or the like. It has become. In addition, when the system is introduced into the building 10, the power sensor 31, the display 32, and the like are introduced into the building 10. Hereinafter, such a power feeding system will be described with reference to FIG.

  As shown in FIG. 3, in the power supply system of this example, a power sensor 31 and a display 32 that are integrated with each other are provided for each branch circuit 28 as in the above embodiment. Each power sensor 31 is provided with a clip portion (not shown) for detachably attaching the sensor 31 to the branch circuit 28. Each power sensor 31 is detachably attached to the branch circuit 28 using its clip portion (and thus an attachment portion). In addition, each power sensor 31 is detachably attached to the branch circuit 28, so that each indicator 32 is detachably provided at a position adjacent to the branch breaker 22.

  The power supply system of this example includes a management device 45 (corresponding to the device main body) instead of the management server 35 in the above embodiment. The management device 45 includes a main body 46 (housing), and a controller 36 and an operation unit 37 provided on the main body 46. The management device 45 is portable and can be attached to the wall surface in the building 10, the distribution board 20, or the like. For example, the main body portion 46 is provided with a hole (hook portion) for hooking, and the hole portion is hooked on a protruding portion (hooked portion) provided on the wall surface, the distribution board 20 or the like, thereby the main body portion 46. Can be attached to a wall or the like. The management device 45 (controller 36) is electrically connected to each power sensor 31 (and the display device 32) via the wiring 48. Note that the notification device 50 includes the management device 45, the power sensor 31, and the display 32.

  The controller 36 and the operation unit 37 have the same configuration as in the above embodiment. For this reason, the same reference numerals as those in the above-described embodiment are assigned to these, and the description thereof is omitted.

  As described above, according to the notification device 50 of the present example, the management device 45 is portable, and the power sensor 31 (and the indicator 32) can be attached to and detached from the branch circuit 28. By bringing the notification device 50 (the management device 45, the power sensor 31, and the display device 32) into the device and attaching the power sensor 31 to the branch circuit 28, a power feeding system similar to that in the above embodiment can be constructed. Thereby, it is possible to construct a power feeding system relatively easily for the existing building 10. In addition, since the system uses the distribution board 20 which is an existing facility, it is not necessary to introduce a large facility and a power feeding system can be constructed with a relatively simple configuration.

  By the way, since the notification device 50 of this example is detachably provided on the building 10 side, it can be used by being attached to the building 10 side only for a certain period. Therefore, how to use the notification device 50 in that case will be described below.

  First, when a system capable of supplying power from the external power supply device 17 is introduced into the building 10, the notification device 50 is brought into the building 10, and the above-described power supply system (the power supply system in FIG. ) Build. And at the time of the electric power supply from the commercial power supply 11, the electric power consumption of the electric equipment L for every branch circuit 28 is measured for a fixed period (for example, one week) with the electric power sensor 31, and the electric equipment L for every measured branch circuit 28 is measured. The power consumption is stored in the storage unit 36 a by the controller 36. Thereby, the power consumption history for a certain period for each branch circuit 28 is stored in the storage unit 36a.

  After the fixed period has elapsed, the controller 36 causes the pre-power supply control process (see FIG. 2) described in the above embodiment to be executed. In this control process, it is determined to which branch circuit 28 the power is supplied when power is supplied from the external power supply device 17 (step S17 in FIG. 2). In this case, the branch circuit 28 of the power supply destination is determined based on the power consumption history for a certain period stored in the storage unit 36a. In the control process, the determined branch breaker 22 of the branch circuit 28 is notified by turning on the display 32 (step S18 in FIG. 2). After the completion of this control process, the notified branch breaker 22 is marked with a seal or the like. Thereafter, the notification device 50 is recovered, for example, by removing the power sensor 31 from the branch circuit 28.

  Actually, when power is supplied from the external power supply device 17, the marked branch breaker 22 is closed, and the other branch breakers 22 are opened. As a result, power from the external power supply device 17 is supplied only to the branch circuit 28 determined as the power supply destination by the control process. Therefore, in this case as well, it is possible to suppress inconveniences such as unexpectedly stopping power supply during the power supply while appropriately supplying power from the external power supply device 17.

  In this case, the notification device 50 can be reused by collecting the notification device 50. Therefore, effective use of the notification device 50 can be achieved. However, the notification device 50 does not necessarily need to be collected, and may remain attached to the building 10 side.

  (8) In the example of (7) above, the display device 32 is provided integrally with the power sensor 31, but the display device 32 may be provided separately from the power sensor 31. In that case, for example, it is conceivable that the display unit 32 is provided with an attachment part that is detachably attached to the branch breaker 22, and the display unit 32 is detachably attached to the branch breaker 22 using the attachment part.

  DESCRIPTION OF SYMBOLS 10 ... Building, 11 ... Commercial power supply, 17 ... External power supply device as external power supply, 20 ... Distribution board, 22 ... Branch breaker, 28 ... Branch circuit, 31 ... Power sensor as measuring means, 32 ... Light emitting part Display unit 36... Determination means, notification control means, controller as usage frequency determination means and season determination means, 37... Operation unit, 50.

Claims (7)

A distribution board that is selectively connectable to a commercial power supply and an external power supply different from the commercial power supply, and is supplied with power from the connected power supply;
A plurality of branch circuits that distribute and supply power supplied to the distribution board to electrical equipment in the building;
A plurality of branch breakers provided for each branch circuit in the distribution board, each capable of opening and closing the branch circuit, and a building power supply system comprising:
Measuring means for measuring the power consumption of the electrical device for each branch circuit when power is supplied from the commercial power supply;
Obtaining means for obtaining the power supply capability of the external power source;
Based on the power consumption of the electrical equipment for each branch circuit measured by the measuring unit and the power supply capability of the external power source acquired by the acquiring unit, when the power is supplied from the external power source, the power Determining means for determining which of the branch circuits is to be supplied;
Notification control means for notifying which branch breaker of the branch circuit determined as the power supply destination by the determination means is the notification means;
A power supply system for a building, comprising: The informing means is a plurality of light emitting units provided for each branch breaker,
2. The building power according to claim 1, wherein the notification control unit causes the light emitting unit corresponding to the branch breaker of the branch circuit determined as the power supply destination by the determination unit to emit light as the notification process. Supply system. The informing means is a plurality of light emitting units provided for each branch breaker,
The notification control means, as the notification process, so that the light emission mode differs between the light emitting unit corresponding to the branch breaker of the branch circuit determined as the power supply destination by the determination unit and the other light emitting units, The building power supply system according to claim 1, wherein each light emitting unit emits light. Based on the power consumption of the electrical equipment for each branch circuit measured by the measurement means, comprising usage frequency determination means for determining the usage frequency of the electrical equipment for each branch circuit,
The determining means determines which branch circuit the power from the external power supply is supplied to based on the usage frequency of the electrical equipment for each branch circuit determined by the usage frequency determining means. The building power supply system according to any one of claims 1 to 3. The day is divided into multiple time zones,
The use frequency determination means is for determining the use frequency of the electrical device for each branch circuit in the current time zone,
The determining means determines which branch circuit the power from the external power supply is supplied to based on the determined usage frequency of the electrical device for each branch circuit in the current time zone. The building power supply system according to claim 4. It has a season judgment means to judge the current season,
6. The branch circuit according to claim 1, wherein the determination unit determines to which branch circuit the power from the external power source is supplied based on the current season determined by the season determination unit. The building power supply system according to claim 1. A distribution board that is selectively connectable to a commercial power supply and an external power supply different from the commercial power supply, and is supplied with power from the connected power supply;
A plurality of branch circuits that distribute and supply power supplied to the distribution board to electrical equipment in the building;
The distribution board is provided for each branch circuit, each of which is applied to a building including a plurality of branch breakers capable of opening and closing the branch circuit,
A device body configured to be portable;
A plurality of measuring means detachably attached to each branch circuit;
A plurality of light emitting units provided detachably around each branch breaker in the distribution board;
The plurality of measuring means measure power consumption of the electrical equipment for each branch circuit when power is supplied from the commercial power source.
The apparatus main body is
An operation unit for performing an input operation of the power supply capability of the external power source;
An acquisition means for acquiring a power supply capability of the external power source based on an input operation by the operation unit;
Based on the power consumption of the electrical equipment for each branch circuit measured by the measuring means and the power supply capability of the external power source acquired by the acquiring means, when supplying power from the external power source, Determining means for determining which of the branch circuits to supply power;
And a notifying control means for notifying which branch breaker is by causing the light emitting unit corresponding to the branch breaker of the branch circuit determined as the power supply destination by the determining means to emit light. A notification device.

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