JP2013106483A - Power supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply system which supplies power through a supply source different from a system power source on an emergency basis such as a power failure.SOLUTION: A power supply system comprises: an emergency distribution switchboard 10B which is connected, through a distribution switchboard 10A supplying power from a system power source 1 to a plurality of apparatuses 3a-3c, 4a-4c and a plurality of circuits 20A-20C, with the system power source 1 to supply power to the apparatuses and the circuits; a power supply source 2, 6 which is connected with the emergency distribution switchboard 10B and is different from the system power source 1; and control means 30 which selects between the system power source 1 and the other power supply source connected with emergency distribution switchboard 10B. The control means 30 selects the other power supply source connected with the emergency distribution switchboard 10B on an emergency basis such as a power failure or power use limitation to supply power from the selected power supply source 2, 6 to the apparatuses and the circuits.

Description

  The present invention relates to a power supply system.

  2. Description of the Related Art Conventionally, various technologies for generating and storing energy on the consumer side as well as purchasing power supplied by a provider of a system power supply (commercial power supply) have been proposed.

  For example, in Patent Document 1, a distributed energy device including a power generation device, a power storage device, a heat storage device, and a hydrogen storage device is used, and the energy demand and supply are predicted based on the energy demand and supply results. A technique for controlling a distributed energy device based on the above is described.

JP 2004-31798 A

  However, no configuration has been proposed for supplying power from a power supply (power generation device, power storage device, etc.) separate from the system power supply in the event of an emergency such as a power failure.

  An object of the present invention is to provide a power supply system that supplies power from a power supply different from a system power supply in an emergency such as a power failure.

In order to solve at least one of the above problems, the invention according to claim 1 is, for example, as shown in FIGS.
A distribution board 10A connected to the system power source 1 and supplying power from the system power source 1 to the plurality of devices 3a to 3c, 4a to 4c and the plurality of circuits 20A to 20C;
An emergency distribution board 10B connected to the system power supply 1 via the distribution board 10A, for supplying power to the plurality of devices 3a to 3c, 4a to 4c and the plurality of circuits 20A to 20C;
Supply power sources 2 and 6 that are connected to the emergency power distribution board 10B and that are different from the system power source 1;
Control means 30 for selecting any one of the system power supply 1 and the other power supplies 2 and 6 connected to the emergency distribution board 10B,
With
The plurality of circuits 20A to 20C are connected to the plurality of devices 3a to 3c and 4a to 4c, respectively, and the devices 3a to 3c corresponding to the circuits 20A to 20C are connected from the circuits 20A to 20C, respectively. Power is supplied to 4a-4c,
The control means 30 controls the emergency power distribution panel 10B in the event of a power outage or power usage restriction, and selects the other power supplies 2 and 6 connected to the emergency power distribution panel 10B. Power is supplied to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C from the different power supplies 2 and 6 that have been performed.

  According to the first aspect of the present invention, the control means 30 selects the other power supplies 2 and 6 connected to the emergency power distribution panel 10B in the event of a power outage or power usage limitation, and this selection is made. Since the power is supplied to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C from the separate power sources 2 and 6, the power source is different from that of the system power source 1 in the event of a power failure or an emergency power usage restriction. A power supply system 100 that supplies power from the supply power sources 2 and 6 can be provided.

The invention described in claim 2 is, for example, as shown in FIGS.
The power supply system 100 according to claim 1, wherein
In the emergency, it further comprises a display operation monitor 7 for giving an instruction for selecting the other power supply to the emergency distribution board,
In the event of an emergency, power is supplied to the display operation monitor 7 from the other power supply 2 or 6 or the internal power supply 33 for the display operation monitor 7, enabling display operation of the display operation monitor 7. Features.

  According to the invention described in claim 2, in the emergency, power is supplied to the display operation monitor 7 from the other power supply 2 or 6 or the internal power supply 33 for the display operation monitor 7, and the display operation is performed. Since the display operation of the monitor 7 is enabled, the control means 30 can control the emergency power distribution panel 10B even if the supply of power from the system power supply 1 is stopped.

For example, as shown in FIG. 1 and FIG.
The power supply system 100 according to claim 2, wherein
The display operation monitor 7 includes power consumption corresponding to the devices 3a to 3c and 4a to 4c expected to be used in the emergency, and the circuits 20A to 20C for supplying power to the devices 3a to 3c and 4a to 4c. And further includes a storage means 35 for storing the power consumption corresponding to the above in advance, and a display unit 7a.
In the emergency, the display operation monitor 7 is configured to read the power consumption corresponding to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C expected to be used in an emergency read from the storage unit 35, and The priorities of the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C are displayed on the display unit 7a so as to be selectable, and the control means 30 is configured to select the selected devices 3a to 3c, 4a to 4c and the circuits. The priority order of 20A to 20C is stored in the storage means 35.

  According to the invention described in claim 3, in the emergency, the display operation monitor 7 is used for the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C that are expected to be used in an emergency read from the storage means 35. The power consumption corresponding to 20C and the priority order of the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C are displayed on the display unit 7a of the display operation monitor 7 so as to be selectable. Since the priority of the selected devices 3a-3c, 4a-4c and the circuits 20A-20C can be stored in the storage means 35, the devices 3a-3c, 4a-4c and the circuits 20A- The user selects a priority order in consideration of the power consumption amount of 20C, and the priority of the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C is selected. Position it is possible to store in the storage unit 35.

For example, as shown in FIG. 1 and FIG.
The power supply system 100 according to claim 3, wherein
The display operation monitor 7 obtains electric power that can be supplied from the other power supplies 2 and 6, read from the storage means 35, and is expected to be used in an emergency, the devices 3a to 3c, 4a to 4c, and the circuit 20A. Further includes a calculation means 32 that automatically obtains predicted power consumption of the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C from the power consumption corresponding to ~ 20C,
In the emergency, when the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C that the user wants to use are selected, the display operation monitor 7 has the power that can be supplied calculated by the calculation means 32. The selected power consumption corresponding to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C is displayed on the display unit 7a.

  According to the invention described in claim 4, when the devices 3 a to 3 c, 4 a to 4 c and the circuits 20 </ b> A to 20 </ b> C that the user wants to use are selected by the user in the emergency, the display operation monitor 7 is the computing means. The display unit 7a displays the power that can be supplied determined by 32 and the predicted power consumption corresponding to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. The power that can be supplied and the predicted power consumption corresponding to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C can be displayed in a comparable manner.

The invention according to claim 5 is, for example, as shown in FIGS.
The power supply system 100 according to claim 4, wherein
The emergency distribution board 10B further includes switching means 10B1 to 10B3 for switching from the system power supply 1 to the other power supplies 2 and 6 in an emergency.
The switching means 10B1 to 10B3 are connected to the different ones from the system power supply 1 according to the predicted power consumption and the priority order corresponding to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. The power supply is switched to the power supply 2 or 6, and power is supplied from the other power supply 2 or 6 to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C.

  According to the fifth aspect of the present invention, the switching means 10B1 to 10B3 includes the predicted power consumption and the priority corresponding to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. According to the order, the system power supply 1 is switched to the other power supply 2 and 6, and power is supplied from the other power supply 2 and 6 to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. Therefore, power can be preferentially supplied to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C that are necessary in an emergency.

For example, as shown in FIG. 1 and FIG.
In the electric power supply system 100 of Claim 4 or 5,
The computing means 32 is configured to supply the separate supply from the power consumption of the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C and the amount of power that can be supplied from the separate supply power sources 2 and 6. Obtaining a duration time during which power can be continuously supplied from the power sources 2 and 6 to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C;
The display operation monitor 7 displays a duration time during which power is continuously supplied from the separate power supplies 2 and 6 to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. It is characterized by displaying.

  According to the invention described in claim 6, the display operation monitor 7 continues to supply power to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C from the other power supplies 2 and 6. Since the continuous supply time is displayed on the display unit 7a, the user can easily know the continuous time and can take measures such as power saving.

The invention described in claim 7 is, for example, as shown in FIGS.
In the electric power supply system 100 as described in any one of Claims 1-6,
The another power supply is a plurality of power supplies 2 and 6 including a power storage device 6, and one of these power supplies 2 and 6 is a solar power generator 2a or a gas power generator 2b using gas,
The control means 30 is characterized in that, when surplus power is generated in the power generated by the power generation device, the surplus power is supplied from the power generation device to the power storage device 6.

  According to the invention described in claim 7, when the surplus power is generated in the power generated by the power generation device, the control means 30 supplies the surplus power from the power generation device to the power storage device 6. Electricity can be stored even in an emergency.

The invention according to claim 8 is, for example, as shown in FIGS.
The power supply system 100 according to claim 7, wherein
When the control means 30 determines that the power that can be supplied from the solar power generation device 2a is unstable or insufficient, the power to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C having the lower priority is determined. The supply is stopped.

  According to invention of Claim 8, when the said control means 30 judges that the electric power which can be supplied from the said solar power generation device 2a is unstable or insufficient, the apparatus 3a-3c of the said low priority order, Since the power supply to 4a to 4c and the circuits 20A to 20C is stopped, the power supply to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C having higher priority can be continued.

  ADVANTAGE OF THE INVENTION According to this invention, the power supply system which supplies electric power from the power supply different from a system power supply can be provided at the time of emergency, such as a power failure.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the electric power supply system which concerns on this invention, and is the schematic which shows a circuit structure. It is a figure which shows an example of the functional block diagram which concerns on a display operation monitor. It is a figure which shows a flowchart similarly. It is a figure which shows an example of the screen of a display operation monitor similarly. It is a figure which shows an example of the screen of a display operation monitor similarly.

  Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment>
In FIG. 1, a power supply system 100 is connected to a system power source 1, and from this system power source 1 to a plurality of lighting fixtures 3 a to 3 c, a rice cooker 4 a, a refrigerator 4 b, a television (TV) 4 c and a plurality of circuits 20 </ b> A to 20 </ b> C. A distribution board 10A for supplying power, and connected to the system power supply 1 through the distribution board 10A, and the plurality of lighting fixtures 3a to 3c, rice cookers 4a, refrigerator 4b, and television from the system power supply 1 4c and an emergency distribution board 10B for supplying power to the plurality of circuits 20A to 20C. The plurality of lighting fixtures 3a to 3c, the rice cooker 4a, the refrigerator 4b, and the television 4c correspond to “a plurality of devices” of the present invention. Furthermore, the power supply system 100 includes a power generation device 2 and a power storage device 6 that are connected to the emergency power distribution panel 10B, which are different from the system power source 1, and the system power source 1 or another power source. And a display operation monitor 7 for performing display of power and amount of power that can be supplied from the power generation device 2 and the power storage device 6, and control of power supply to the plurality of devices 3 a to 3 c and 4 a to 4 c. . The power generation device 2 is a solar power generation device 2a and a gas power generation device 2b, and the power storage device 6 is a storage battery 6a and a chargeable / dischargeable vehicle 6b such as a plug-in hybrid vehicle (PHV) or an electric vehicle (EV).

  The emergency distribution board 10B is connected to a distribution board 10A normally installed in the building, and power is supplied from the system power supply 1 via the distribution board 10A, and this power is supplied to the emergency distribution board 10A. 10B is supplied to the plurality of devices 3a to 3c, 4a to 4c and the plurality of circuits 20A to 20C through wiring to the plurality of devices 3a to 3c, 4a to 4c and the plurality of circuits 20A to 20C. .

  The emergency power distribution panel 10B includes a changeover switch (switch SW) 10B1 to 10B3 for switching the power supply source to either one of the system power supply 1 and another power supply (the power generation device 2 and the power storage device 6), and another It has an earth leakage breaker 21 that interrupts earth leakage from the power supply (power generation device 2 and power storage device 6). The changeover switches 10B1 to 10B3 correspond to “switching means” of the present invention. The earth leakage breaker 21 is connected to each of the solar power generation device 2a, the gas power generation device 2b, the storage battery 6a, and the vehicle 6b. When the leakage breaker 21 detects a leakage, the leakage breaker 21 cuts off the supply of electric power from each of the solar power generation device 2a, the gas power generation device 2b, the storage battery 6a, and the vehicle 6b.

(Display operation monitor)
As shown in FIG. 2, the display operation monitor 7 includes an operation unit 34 that performs various touch panel-type operations, and a display that displays the power that can be supplied, the amount of power, and the like that are integrated with the operation unit 34. Control means 30 for controlling the changeover switches 10B1 to 10B3 and the like in order to select one of the system power supply 1 connected to the part 7a and the emergency power distribution board 10B and the other power supplies 2 and 6 And a communication means 31 for communicating with an external network, a calculation means 32 for performing various calculations, an internal power supply 33, and a timing means 37.

The user operates the operation unit 34 of the display operation monitor 7 to give various instructions to the control means 30. In the event of a power failure or power usage limitation, power is supplied to the display operation monitor 7 from the other power supply 2, 6 or the internal power supply 33 for the display operation monitor 7, and the display operation monitor 7 is operated for display operation. to enable.
As for the supply of power to the display operation monitor 7 and the control unit 30, for example, when power is supplied to the display operation monitor 7 from the other supply power sources 2 and 6 before emergency, that is, in normal time. Even in an emergency, it is possible to supply power to the control means 30 by continuously supplying power to the display operation monitor 7. In addition, when power is not supplied to the display operation monitor 7 at normal time, the internal power supply 33 for the display operation monitor 7 functions as a UPS (uninterruptible power supply), and power is supplied to the display operation monitor 7. As a result, power can be supplied to the control means 30. In addition, you may use what has UPS (uninterruptible power supply) function as said another supply power supplies 2 and 6. FIG. The control unit 30 may be provided outside the display operation monitor.
The power usage limit is a measure to limit the maximum power used by large consumers (contract power of 500 kilowatts or more), for example, during the daytime of a predetermined period, “15% from the maximum power used in the same period and time of last year” This is a measure stipulated in the Electricity Business Law to limit the “reduced value” to the upper limit.
In an emergency, even if power supply from the system power supply 1 is stopped, power is supplied from the other power supply 2, 6 or the internal power supply 33 for the display operation monitor 7, and the changeover switches 10B1 to 10B3. Switching operation can be performed, and at least one other power supply can be selected from the solar power generation device 2a, the gas power generation device 2b, the storage battery 6a, and the vehicle 6b.

  In the control means 30, in the normal state, the changeover switch 10B1 forms a circuit 20A from the system power supply 1 to the kitchen wiring 25A, and the changeover switch 10B2 forms a circuit 20B from the system power supply 1 to the kitchen wiring 25B. The changeover switches 10B1 to 10B3 are controlled to be switched to the system power supply 1 side so that the switch 10B3 forms a circuit 20C from the system power supply 1 to the living room wiring 25C.

  Also, the control means 30 selects at least one other power supply from the solar power generation device 2a, gas power generation device 2b, storage battery 6a, and vehicle 6b connected to the emergency power distribution panel 10B in the event of an emergency. Then, electric power can be supplied to the plurality of lighting fixtures 3a to 3c, the rice cooker 4a, the refrigerator 4b, the television (TV) 4c, and the circuits 20A to 20C from the selected another supply power source.

  In the emergency, the control means 30 is configured so that the changeover switch 10B1 forms a circuit 20A from the selected at least one other power supply to the kitchen wiring 25A, and the changeover switch 10B2 is at least the one selected other. The changeover switch 10B3 forms a circuit 20B from the supply power to the kitchen wiring 25B, and the changeover switch 10B3 forms a circuit 20C from the selected at least one other supply power to the living room wiring 25C. -10B3 are controlled to be switched to the other power supply 2 and 6 side.

Moreover, as shown in FIG. 2, the control means 30 is the 5th from the 3rd electric energy detection means 15a to the electric power consumption of household load (The lighting fixtures 3a-3c, the rice cooker 4a, the refrigerator 4b, the television 4c). Based on the power consumption detected by the power detection means 15c, each system power, generated power, and stored power is monitored and displayed on the display unit 7a. Note that the third power amount detection unit 15 a to the fifth power amount detection unit 15 c can also detect power, and transmit the detected power amount and power to the control unit 30.
Further, the control means 30 monitors the amount of power consumed by charging and discharging of the traveling body of the vehicle 6b based on the amount of power detected by the sixth power amount detecting means 16, and the system power, generated power, Each stored power is displayed on the display unit 7a. The sixth power amount detection unit 16 can also detect power, and transmits the detected power amount and power to the control unit 30.

  Further, the control unit 30 is based on the power consumption of the entire system power based on the power consumption detected by the first power detection unit 11 and the power consumption detected by the second power detection units 12a and 12b. Then, based on the power consumption of the entire generated power and the power consumption detected by the watt hour meter 6c built in the storage battery 6a, the power consumption of the entire stored power is monitored and displayed on the display unit 7a. The first power amount detection unit 11 and the second power amount detection units 12 a and 12 b can also detect power, and transmit the detected power amount and power to the control unit 30.

  In addition to the consumption of electric energy by the household load, the control means 30 determines how much the grid power or generated power is used (charged) when the storage battery 6a is charged with grid power or generated power. Detected by a watt-hour meter 6c provided in the storage battery 6a. And this detected electric energy is displayed on the display part 7a. The power meter 6 c can also detect power, and transmits the detected power amount and power to the control means 30. Similarly, when the vehicle 30 is charged with grid power or generated power in addition to the consumption of electric power due to charging of the vehicle 6b, the control means 30 uses (charges) how much grid power or generated power is used. Is detected by the sixth electric energy detection means 16. And this detected electric energy is displayed on the display part 7a.

  The system power supply 1 supplies AC power from an electric power company, and is connected to first power amount detection means 11 provided in the distribution board 10A. The first electric energy detection means 11 can detect the electric energy of the external system power. The first power amount detection unit 11 is connected to the display operation monitor 7, and the power amount of the system power detected by the first power amount detection unit 11 can be displayed on the display screen of the display operation monitor 7. When the control means 30 determines that the power supplied from the system power supply 1 is reduced or stopped and a power failure occurs, the control means 30 monitors the power of the solar power generator 2a, the gas power generator 2b, the storage battery 6a, and the vehicle 6b and supplies these power supplies. Of these, a current from a power supply capable of supplying power is converted from a direct current to an alternating current as necessary, and the power is supplied to the plurality of devices 3a to 3c, 4a to 4c and the plurality of circuits 20A to 20C. can do.

  The solar power generation device 2a is a private power generation device that directly converts solar energy into direct current power, and is connected to second power amount detection means 12a provided in the emergency power distribution panel 10B. Further, the gas power generator 2b can supply a direct current and an alternating current, and is connected to the second power amount detection means 12b provided in the emergency distribution board 10B. The second power amount detection means 12a and 12b can detect the amount of power generated by the solar power generation device 2a and the gas power generation device 2b. The second power amount detection means 12a and 12b are connected to the display operation monitor 7, and the power amount of the generated power detected by the second power amount detection means 12a and 12b is displayed on the display unit 7a of the display operation monitor 7. Is possible.

The storage means 35 corresponds to the power consumption corresponding to the devices 3a to 3c and 4a to 4c expected to be used in the emergency and the circuits 20A to 20C for supplying power to the devices 3a to 3c and 4a to 4c. The power consumption to be stored is stored in advance. In the emergency, the control means 30 of the display operation monitor 7 reads the power consumption corresponding to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C that are expected to be used in an emergency from the storage means 35. The priorities of the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C relating to the read power consumption are displayed on the display unit 7a of the display operation monitor 7 so as to be selectable, and the operation unit 34 is used by the user. The priorities of the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C selected in this way are stored in the storage means 35.
In addition, the storage unit 35 displays the power information that can be supplied in the event of an emergency as a power supply different from the system power supply 1 as to the solar power generation device 2a, the gas power generation device 2b, the storage battery 6a, and the vehicle 6b. Information such as a name is stored in advance. In an emergency, the control unit 30 reads the names of the solar power generation device 2a, the gas power generation device, the 2b storage battery 6a, and the vehicle 6b from the storage unit 32, and associates them with the power information that can be supplied by each supply power source, thereby displaying the display unit 7a. To display.

(At night power outage)
For example, a power outage occurs at night due to an earthquake, the power from the solar power generation device 2a cannot be supplied, the gas is shut off, the power from the gas power generation device 2b cannot be supplied, and there is no power that can be supplied from the vehicle 6b. Assume that the storage battery 6a is fully charged. In this case, as shown in FIG. 4, suppose that the electric power which can be supplied from the storage battery 2a is 1500w.
Moreover, about the power consumption of each apparatus, the lighting fixture 3a is 86w, the lighting fixture 3b is 66w, the lighting fixture 3c is 110w, the rice cooker 4a is 640w, the refrigerator 4b is 50w, It is assumed that the television 4c is 260w.
In this case, regarding the power consumption of each circuit, the circuit 20A is 726W (86w + 640w), the circuit 20B is 116w (66w + 50w), and the circuit 20C is 370w (110w + 260w). The storage unit 35 stores in advance the power consumption corresponding to the devices and circuits that are expected to be used in these emergency situations. In addition, about the storage method of these power consumption, a user may operate the operation part 34 and it memorize | stores in the memory | storage means 35 beforehand, or an external network is utilized using the authentication function using ID and a password. The power supply system 100 may be accessed from an external terminal via the communication unit 31 and the power consumption amount may be stored in the storage unit 35 in advance.

  The control means 30 reads these pre-stored power consumption amounts from the storage means 35 in the event of an emergency and displays them on the display unit 7a of the display operation monitor 7 so that the priority order can be selected as an emergency mode screen. Display priority order selectable. For example, the user may (1) circuit 20B, (2) refrigerator 4b (outlet 25B1), (3) lighting fixture 3b, (4) circuit 20A, (5) rice cooker 4a (outlet 25A1), (6) lighting fixture. 3a, (7) circuit 20C, (8) television 4c (outlet 25C1), and (9) lighting fixture 3c, in this order, as shown in FIG. When the decision button 7c is pressed, the priority is stored in the storage means 35.

  The calculation means 32 of the display operation monitor 7 is based on the power information of the another power supply (power generation device 2, power storage device 6) monitored by the control means 30, and the other power supply (power generation device 2, power storage). The device 3) obtains the power that can be supplied (for example, the maximum power 1500w of the storage battery 6a), and is read from the storage means 35 and is expected to be used in an emergency, the devices 3a to 3c, 4a to 4c, and the circuits 20A to 20C The power consumption corresponding to each of the devices 3a to 3c, 4a to 4c and the predicted power consumption (for example, 1212w) of the circuits 20A to 20C are automatically obtained.

  When at least one of the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C that the user wants to use in the emergency is selected, the control means 30 of the display operation monitor 7 is controlled by the arithmetic means 32. The obtained power that can be supplied and the predicted power consumption corresponding to at least one of the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C are displayed on the display unit 7a. Let

For example, while referring to the power that the user can supply (maximum power 1500 w of the storage battery 6a), (1) the circuit 20B (116w), (2) the refrigerator 4b (outlet 25B1), (3) the luminaire 3b, (4 ) When the circuit 20A and (5) the rice cooker 4a (outlet 25A1) are selected in order and the enter button 7c is pushed, as shown in FIG. ) And the display unit 7a. Next, when the user presses the execute button 7d, the control means 30 switches the changeover switch connected to the selected circuit from the system power supply 1 to another supply power supply 2 and 6 side, and from the storage battery 6a to the selected device. The power can be supplied. When the return button 7e is pressed, the screen is switched to a selection screen for selecting / determining the priority order of the devices and circuits to be used shown in FIG.
For devices corresponding to circuits that are not selected, even if a device is selected, switching from the system power supply 1 to another supply power source 2 or 6 is not performed by the changeover switch. , 6, power is not supplied to the selected device.

  In this way, in an emergency, the control means 30 causes the changeover switches 10B2, 10B1 to change the predicted power consumption (756w) corresponding to the selected devices 4b, 3b, 4a and the circuits 20B, 20A. In accordance with the priority, the system power supply 1 is switched to the power storage device 6a, and power can be supplied from the power storage device 6a to the devices 4b, 3b, 4a and the circuits 20B, 20A.

  The computing means 32 is selected from the storage battery 6a from the power consumption of the selected devices 4b, 3b, 4a and the circuits 20B, 20A and the amount of power that can be supplied from the storage battery 6a. The display operation monitor 7 obtains a duration time during which power can be continuously supplied to the devices 4b, 3b, 4a and the circuits 20B, 20A, and the display operation monitor 7 sends the selected devices 4b, 3b, 4a and The duration of continuously supplying power to the circuits 20B and 20A is displayed on the display unit 7a.

  For example, as shown in FIG. 5, when the amount of power that can be supplied by the storage battery 6a is 9200wh and the total power consumption of the selected device is 756w, the duration is 9200wh divided by 756w, For example, 12 hours (h) obtained by rounding down the decimal point is obtained as the duration. The control means 30 displays this duration (12 hours) on the display unit 7a.

  When all the displayed devices 3a to 3c, 4a to 4c and the circuits 20A to 20C are selected, pressing the select all button 7b causes the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C to be selected. Is selected, and all the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C are displayed on the confirmation screen shown in FIG. 5 by pressing the enter button 7c.

(When power usage is limited)
In addition, when the power usage is restricted, even if no device is selected for the circuit that is not selected, a switch is formed on the system power supply 1 side so that power is supplied from the system power supply 1 to the device. Supplied. In this case, the calculation means 32 obtains the ratio of the power consumption corresponding to the selected device and circuit to the total power consumption, and the control means 30 uses the ratio as the power consumption reduction amount of the system power supply 1 to display the display unit 7a. To display. In the above example, the calculation unit 32 has an overall power consumption of 1212 w, and the power consumption corresponding to the selected device and circuit is 756 w. The calculation means 32 divides 756w by 1212w and obtains, for example, 62% obtained by rounding down the decimal point as the system power consumption reduction rate. The control means 30 causes the display unit 7a to display the system power consumption reduction ratio (62%) and the power usage reduction amount (756w) of the system power supply 1.

(At the time of power failure that can supply gas)
In addition, when gas can be supplied and the gas power generation device 2b can be used, it is a duration until the gas supply is stopped or the gas power generation device 2b fails, and cannot be obtained by calculation. Without displaying the duration, the fact that the gas power generator 2b is being driven and its maximum power consumption (w) are displayed.

(During power outages during the day)
Further, when the solar power generation device 2a can be used after dawn, the control means 30 preferentially uses the power from the solar power generation device 2a to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. In addition, when the power from the solar power generation device 2a is insufficient and the power can be supplied from the power storage device 6 for the shortage, the control unit 30 compensates for the shortage from the power storage device 6. The power storage device 6 is controlled. The case where the power supply from the power storage device 6 is possible is, for example, that the control means 30 indicates that the power supply can be performed when the power storage device 6 has a power amount (wh) of 30% or more of the full charge remaining. to decide. When the power storage device 6 has a power amount (wh) of 10% or less when fully charged, the display unit 7a displays “the power amount of the power storage device is less than 10%.” Notice.

(When surplus power is generated)
Further, one of the plurality of power supplies including the power storage device 6 is the solar power generation device 2a or the gas power generation device 2b using gas, and the control means 30 generates surplus power in the generated power of the power generation device. In this case, the surplus power is supplied from the power generation device to the power storage device 6.

  For example, when the total power consumption of the selected device is 756 w and the generated power of the solar power generation device 2 a is 2000 w, surplus power of 1244 w is generated. The surplus power is supplied from the solar power generation device 2a to the power storage device 6 and stored. By using this surplus power at night, the minimum power can be secured even in an emergency.

(When supply power is unstable or insufficient)
When the control unit 30 determines that the power that can be supplied from the solar power generation device 2a is unstable or insufficient, in the example illustrated in FIG. 5, the power to the television 4c and the circuit 20C having the lower priority is used. Stop supplying.

For example, as the case where the electric power that can be supplied from the solar power generation device 2a is unstable, the generated electric power may not be constant due to repeated sun and cloudiness. In this case, the control means 30 monitors the generated power from the solar power generation device 2a, and the generated power is 10% or more above and below the average value within a certain time (for example, 1 hour). If it changes, it is determined to be unstable.
Moreover, it may be judged that it has approached sunset as a case where the electric power which can be supplied from the said solar power generation device 2a is insufficient. In this case, in addition to monitoring the generated power from the solar power generation device 2a, the control means 30 refers to the time information by the time measuring means 37, and due to this time information and a change in the generated power that continuously decreases, It is determined that the power is insufficient when the power becomes a certain power (for example, 800 w) or less.

(Operation example of power supply system 100)
Next, an operation example of the power supply system 100 when a power failure occurs will be described with reference to FIG.

When a power failure occurs (step S1), the control means 30 automatically switches the screen of the display unit 7a to the emergency mode screen shown in FIG. 4 (step S2). Note that the power to the display operation monitor 7 is supplied by, for example, an internal power supply having a UPS function.
On the emergency mode screen, as shown in FIG. 4, the control means 30 reads the names of the solar power generation device 2 a, the gas power generation device 2 b, the storage battery 6 a, and the vehicle 6 b stored in advance in the storage means 35. And the second power amount detection means 12a, the second power amount detection means 12b, the watt hour meter 6c, and the sixth power amount detection means 16 are displayed on the display unit 7a in association with the power that can be supplied. (Step S3). As shown in FIG. 4, the solar power generation device 2a is 0w, the gas power generation device 2b is 0w, the storage battery 6a is 1500w, the vehicle 6b is 0w, and the user can supply up to 1500w of power from the storage battery 6a. Can be recognized.

  The user selects a device and a circuit to be used from the plurality of devices 3a to 3c, 4a to 4c and the plurality of circuits 20A to 20C shown in FIG. 4 (step S4). When the select all button is pressed, the plurality of devices 3a to 3c, 4a to 4c and the plurality of circuits 20A to 20C are selected. Here, the user sequentially displays the display areas of (1) circuit 20B, (2) refrigerator 4b (outlet 25B1), (3) lighting fixture 3b, (4) circuit 20A, and (5) rice cooker 4a (outlet 25A1). When the selection button 7c is pressed and the determination button 7c is pressed, the usable devices 4b, 3b, 4a and the circuits 20B, 20A are displayed on the display unit 7a as usable devices and circuits as shown in FIG. (Step S5). Note that the screen shown in FIG. 4 is a touch panel type display unit 7 a, and the display unit 7 a is configured integrally with the operation unit 34.

  When the user confirms the power consumption and duration of the selected usable devices 4b, 3b, 4a and the circuits 20B, 20A on the screen shown in FIG. Switches the changeover switches 10B2 and 10B1 from the system power supply 1 side to the storage battery 6a side to form an emergency circuit 20B from the storage battery 6a to the refrigerator 4b and the lighting fixture 3b connected to the kitchen wiring 25B, and An emergency circuit 20C from the storage battery 6a to the rice cooker 4a connected to the kitchen wiring 25B is formed (step S6).

  Thereafter, the user can operate and use each device. Further, referring to the message displayed on the display unit 7a of the display operation monitor 7, it is possible to change the device and circuit to be used (step S7). For example, since the electric power can be supplied from the solar power generation device 2a in the daytime when the weather is good, the control means 30 automatically changes and selects the supply device from the storage battery 6a to the solar power generation device 2a. When there is power, for example, “There is surplus power from solar power generation on the display unit 7a. Currently, surplus power is being stored in the storage battery 6a, but TV can be used instead of this power storage. Is displayed. When the user wants to use the television 4c, the user presses the return button 7e shown in FIG. 5, selects the television 4c and the circuit 20C shown in FIG. 4, and then presses the decision button 7c. The circuit 20C is displayed, and the TV 4c can be used by pressing the execution button 7d (steps S8, S5 to S7). In addition, when the power supply from the system power supply 1 is resumed and the user wants to cancel the emergency mode, when the user presses the cancel button 7f shown in FIG. 5, the control means 30 cancels the emergency mode and the changeover switch 10B1. -10B3 are all switched to the system power supply 1, and the screen of the display unit 7a is switched to the display state of the normal mode (step S9). In the display in the normal mode, the actual power consumption of the plurality of devices 3a to 3c, 4a to 4c and the circuits 20A to 20C is detected by the fifth power detection means from the third power detection means, as shown in FIG. It is displayed on the display unit 7a in such a table or graph format.

  According to the present embodiment, the control unit 30 selects the other supply power sources 2 and 6 connected to the emergency power distribution panel 10B in the event of a power failure or power usage restriction, and the selected power source is selected. Since power is supplied to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C from separate power sources 2 and 6, a power source 2 that is different from the system power source 1 in the event of a power outage or power use restriction. , 6 can be provided.

  In the case of an emergency, power is supplied to the display operation monitor 7 from the other power supply 2 or 6 or the internal power supply 33 for the display operation monitor 7 to enable display operation of the display operation monitor 7. Therefore, even if the supply of power from the system power supply 1 is stopped, the control means 30 can control the emergency power supply panel 10B.

  Further, in the emergency, the display operation monitor 7 has power consumption corresponding to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C expected to be used in an emergency read from the storage unit 35, and , The priorities of the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C are displayed on the display unit 7a of the display operation monitor 7 so as to be selectable, and the control means 30 selects the selected devices 3a to 3c, 4a to 4c and the priorities of the circuits 20A to 20C can be stored in the storage means 35, so that the power consumption of the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C required in an emergency is taken into consideration. The user selects the priority order, and the priority order of the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C is stored in the storage means 35. So it becomes possible.

  In the emergency, when the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C that the user wants to use are selected, the display operation monitor 7 can supply the information obtained by the calculation means 32. Since the power and the predicted power consumption corresponding to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C are displayed on the display unit 7a, the power that can be supplied and the selection The predicted power consumption corresponding to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C can be displayed in a comparable manner.

  Further, the change-over switches 10B1 to 10B3 are connected from the system power source 1 according to the predicted power consumption and the priority order corresponding to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. The power supply is switched to another power supply 2 or 6 and power is supplied from the other power supply 2 or 6 to the selected devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. It becomes possible to preferentially supply power to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C.

  In addition, the display operation monitor 7 is connected to the selected devices 3a to 3c, 4a to 4c and the devices 3a to 3c expected to be used corresponding to the circuits 20A to 20C from the other power supplies 2 and 6. , 4a to 4c and the duration time for continuously supplying power to the circuits 20A to 20C are displayed on the display unit 7a, so that the user can easily know the duration time and take measures such as power saving. it can.

  In addition, when surplus power is generated in the power generated by the power generation device, the control means 30 supplies the surplus power from the power generation device to the power storage device 6, so that power can be stored even in an emergency. .

  Further, when the control unit 30 determines that the power that can be supplied from the solar power generation device 2a is unstable or insufficient, the control unit 30 supplies the low priority devices 3a to 3c, 4a to 4c and the circuits 20A to 20C. Therefore, the power supply to the devices 3a to 3c, 4a to 4c and the circuits 20A to 20C having higher priority can be continued.

DESCRIPTION OF SYMBOLS 1 System power supply 2, 6 Supply power supply 2a Solar power generation device 2b Gas power generation device 3a-3c, 4a-4c Equipment 7 Display operation monitor 10A Distribution board 10B Emergency distribution board 10B1-10B3 Changeover switch (switching means)
20A to 20C circuit 30 control means 32 calculation means 33 internal power supply 35 storage means 100 power supply system

Claims (8)

A distribution board connected to the system power supply and supplying power to a plurality of devices and circuits from the system power supply;
An emergency power distribution board connected to the system power supply via the distribution board, for supplying power to the plurality of devices and the plurality of circuits,
A power supply connected to the emergency power distribution board, different from the system power supply,
Control means for selecting any one of the system power supply and another power supply connected to the emergency power distribution board,
With
The plurality of circuits are connected corresponding to the plurality of devices, respectively, and power is supplied from each circuit to the device corresponding to the circuit,
The control means selects the another power supply connected to the emergency distribution board in the event of a power failure or power usage restriction, and powers the device and the circuit from the selected another power supply. A power supply system characterized by supplying The power supply system according to claim 1,
In the emergency, the emergency distribution board further includes a display operation monitor for giving an instruction to select the another power supply,
In the case of an emergency, power is supplied to the display operation monitor from the other power supply or the internal power supply for the display operation monitor, and the display operation monitor can perform display operation. The power supply system according to claim 2,
The display operation monitor includes a storage unit that stores in advance power consumption corresponding to the device expected to be used in an emergency and power consumption corresponding to the circuit that supplies power to the device, and a display unit And
In the emergency, the display operation monitor can select a power consumption corresponding to the device and the circuit expected to be used in an emergency read from the storage unit, and a priority order of the device and the circuit. Displayed on a display unit, the control means stores the priority order of the selected device and the circuit in the storage means. The power supply system according to claim 3, wherein
The display operation monitor obtains power that can be supplied from the other power supply, and uses the power consumption corresponding to the device and the circuit that are expected to be used in an emergency read from the storage unit, to determine the power of the device and the circuit. It further has a calculation means for automatically obtaining the predicted power consumption,
In the emergency, when the device and the circuit that the user wants to use are selected, the display operation monitor corresponds to the power that can be supplied and the selected device and the circuit that are selected by the calculation means. A power supply system that displays predicted power consumption on a display unit. The power supply system according to claim 4,
The emergency distribution board further includes switching means for switching from the system power supply to the another power supply in an emergency,
The switching means switches from the system power source to the another power source according to the predicted power consumption and the priority order corresponding to the selected device and circuit, and is selected from the other power source. A power supply system for supplying power to the device and the circuit. The power supply system according to claim 4 or 5,
The computing means continues power from the other supply power source to the selected device and circuit from the power consumption of the selected device and circuit and the amount of power that can be supplied from the other supply power source. Seeking a continuous supply time,
The display operation monitor displays, on the display unit, a duration time during which power is continuously supplied to the selected device and the circuit from the another power supply. In the electric power supply system according to any one of claims 1 to 6,
The another power supply is a plurality of power supplies including a power storage device, and one of these power supplies is a solar power generator or a gas power generator using gas,
When the surplus power is generated in the power generated by the power generation device, the control means supplies the surplus power from the power generation device to the power storage device. The power supply system according to claim 7, wherein
The control means stops power supply to the devices and circuits with low priority when it is determined that the power that can be supplied from the photovoltaic power generator is unstable or insufficient. .

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