Power supply system and power supply management device

Abstract

To provide a power supply system that is able to appropriately allocate power supply from an emergency power source to a plurality of load facilities when a power failure occurs in a power system.SOLUTION: A power supply system 1 includes: an emergency power supply 10; power supply switching units 22, 23 that individually switch between supply and interruption of power from the emergency power supply 10 to a plurality of load facilities 42, 43; an operation schedule creation unit 51 that, based on registration information of the plurality of load facilities 42, 43, creates an operation schedule for the plurality of load facilities 42, 43 when a power failure of a power system 2 occurs; and a power supply control unit 17 that, when a power failure in the power system 2 is recognized, switches between the load facilities 42, 43 to which power is supplied from the emergency power source 10, by means of the power supply switching units 22, 23 according to the operation schedule.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a power supply system and a power supply management device. [Background technology]

[0002] Conventionally, power supply equipment that supplies power from a storage battery to load equipment during a power grid blackout is known for apartment buildings. For example, Patent Document 1 discloses a power supply device that cuts off the power supply to load equipment in order of the lowest preset operation and operation priority when the storage battery OC is on a downward trend during a power grid blackout. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-37354 A Summary of the Invention [Problem to be solved by the invention]

[0004] The power supply device disclosed in Patent Document 1 cuts off the power supply to load equipment according to a preset priority when a power outage occurs in the power grid. However, if the power supply to the load equipment is cut off according to the preset priority, there is a risk that users will not be able to use the load equipment as they wish in facilities such as apartment buildings, hospitals, schools, and companies where the load equipment is installed. The present application has been made in consideration of the above background, and aims to provide a power supply system and a power supply management device that can appropriately allocate power supply from an emergency power source to multiple load facilities in the event of a power outage in the power grid. [Means for solving the problem]

[0005] A first aspect for achieving the above-mentioned object includes a power supply system including: an emergency power source; a power supply switching unit connected to a power system and the emergency power source, which switches between supplying and cutting off power from the power system to a plurality of load equipment, and also switches between supplying and cutting off power from the emergency power source to the plurality of load equipment individually for each of the load equipment; an operation schedule creation unit which creates an operation schedule for the plurality of load equipment in the event of a power outage in the power system based on registration information of the plurality of load equipment; a power outage recognition unit which recognizes a power outage in the power system; and a power supply control unit which, when a power outage in the power system is recognized by the power outage recognition unit, switches the load equipment to which power is supplied from the emergency power source in accordance with the operation schedule using the power supply switching unit.

[0006] In the above-mentioned power supply system, the registration information includes information on whether the equipment is an operation assurance target equipment whose operation needs to be ensured in the event of a power outage in the power system, and information on the power required for operation if it is an operation assurance target equipment, and the operation schedule creation unit may be configured to recognize the surplus power of the emergency power source excluding the power required for operation of the load equipment that is the operation assurance target equipment based on the registration information, and to create the operation schedule for the load equipment other than the operation assurance target equipment in accordance with the surplus power.

[0007] In the above power supply system, the operation schedule creation unit may be configured to create the operation schedule by limiting the number of load equipment that are operated simultaneously so that the power supplied from the emergency power source does not exceed a predetermined upper limit power.

[0008] In the above power supply system, the emergency power source may have a recording medium, and the operation schedule created by the operation schedule creation unit may be acquired and stored in the recording medium, and the power supply control unit may be configured to switch the load equipment to which power is supplied from the emergency power source by the power supply switching unit in accordance with the operation schedule recorded on the recording medium when the power outage recognition unit recognizes a power outage in the power system.

[0009] In the above-mentioned power supply system, the system may have a plurality of emergency power sources, the power supply switching unit switches between supplying and cutting off power from the plurality of emergency power sources to the plurality of load equipment individually for each of the emergency power sources and each of the load equipment, and the operation schedule creation unit may create the operation schedule so as to prevent a state in which power is supplied from the plurality of emergency power sources to the same load equipment at the same time.

[0010] In the above-mentioned power supply system, the operation schedule creation unit may be provided in a server that communicates with a user terminal used by a user of the load equipment, and may be configured to change the operation schedule based on operation request information for the load equipment transmitted from the user terminal.

[0011] In the above-mentioned power supply system, the operation schedule creation unit may be configured to transmit to the user terminal operation schedule guidance information indicating requested load equipment, which is the load equipment for which the user can request operation, and the operation timing of the requested load equipment in the operation schedule.

[0012] In the above-mentioned power supply system, when a power outage in the power system is recognized by the power outage recognition unit, the operation schedule creation unit may be configured to refer to power outage event history data that associates past power outage events in the power system with an applied operation schedule, which is the operation schedule applied to the event, extract the applied operation schedule associated with an event similar to the recognized power outage event, and create the operation schedule based on the extracted applied operation schedule.

[0013] A second aspect for achieving the above object is a power supply management device that is connected to a power system and an emergency power source, and controls the operation of a power supply switching unit that switches between supplying and cutting off power from the power system to a plurality of load equipment, and switches between supplying and cutting off power from the emergency power source to the plurality of load equipment individually for each of the load equipment, the power supply management device comprising: a power outage recognition unit that recognizes a power outage in the power system; an operation schedule creation unit that creates an operation schedule for the plurality of load equipment in the event of a power outage in the power system based on registration information of the plurality of load equipment; and a power supply control unit that, when a power outage in the power system is recognized by the power outage recognition unit, switches the load equipment to which power is supplied from the emergency power source in accordance with the operation schedule using the power supply switching unit. Effect of the Invention

[0014] According to the power supply system and the power supply management device, when a power outage occurs in the power grid, power supply from the emergency power source to a plurality of load facilities can be appropriately distributed. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a configuration diagram of a power supply system according to the first embodiment. [Diagram 2] FIG. 2 is an explanatory diagram of the emergency power supply DB. [Diagram 3] FIG. 3 is an explanatory diagram of the load equipment DB. [Figure 4] FIG. 4 is a first flowchart of the operation schedule creation process. [Diagram 5] FIG. 5 is a second flowchart of the operation schedule creation process. [Figure 6] FIG. 6 is an explanatory diagram of the operation schedule. [Figure 7] FIG. 7 is an explanatory diagram of an example of a modification of the operation schedule. [Figure 8] FIG. 8 is a configuration diagram of a power supply system equipped with two emergency power sources. [Figure 9]FIG. 9 is an explanatory diagram of the operation schedule for two emergency power supplies. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] [1. Power supply system configuration] An example of the configuration of a power supply system 1 according to the present disclosure will be described with reference to Fig. 1. The power supply system 1 responds to a power outage in a power system 2 in a facility (a housing complex, a hospital, a school, a company, etc.) in which a plurality of load facilities, namely, a disaster prevention facility 41, a first load facility 42, and a second load facility 43, are installed. Note that, although Fig. 1 illustrates the first load facility 42 and the second load facility 43 as examples of load facilities other than the disaster prevention facility 41, the power supply system according to the present disclosure can also be applied to a facility in which three or more load facilities are installed.

[0017] The disaster prevention equipment 41 corresponds to the operation assurance target equipment in this disclosure, which needs to be ensured to operate in the event of a power outage in the power system. In addition to disaster prevention equipment, the operation assurance target equipment also includes medical equipment and the like in the case where the facility is a hospital.

[0018] The power supply system 1 includes an emergency power supply 10, a power switching circuit 40, and a server 50 that communicates with the emergency power supply 10 via a communication network 200. The power switching circuit 40 switches the power supplied to a disaster prevention facility 41, a first load facility 42, and a second load facility 43 between the power system 2 side and the emergency power supply 10 side. The power switching circuit 40 sets the power supplied to the disaster prevention facility 41, the first load facility 42, and the second load facility 43 to the power system 2 side during normal times when no power outage occurs in the power system 2. The power switching circuit 40 has a function of switching the power supplied to the disaster prevention facility 41, the first load facility 42, and the second load facility 43 to the emergency power supply 10 side when a power outage occurs in the power system 2.

[0019] The emergency power supply 10 includes a battery 20, a first relay 21 for switching a first power line 31 connecting the battery 20 and a disaster prevention equipment 41 between a conductive state and a cut-off state, a second relay 22 for switching a second power line 33 connecting the battery 20 and a first load equipment 42 between a conductive state and a cut-off state, and a third relay 23 for switching a third power line 35 connecting the battery 20 and a second load equipment 43 between a conductive state and a cut-off state. The power switching circuit 40, the first relay 21, the second relay 22, and the third relay 23 constitute a power supply switching unit of the present disclosure. The emergency power supply 10, the disaster prevention equipment 41, the first load equipment 42, and the second load equipment 43 are connected via connectors 30, 32, and 34.

[0020] Furthermore, the emergency power supply 10 includes a recording medium 11 and a controller 15. The controller 15 is a control unit having a processor, a memory, etc. The processor of the controller 15 functions as a power outage recognition unit 16 and a power supply control unit 17 by reading and executing a control program for the emergency power supply 10 stored in the memory.

[0021] The power outage recognition unit 16 recognizes a power outage in the power system 2 based on a voltage detected by a voltage sensor provided in the emergency power supply 10. When the power outage in the power system 2 is recognized by the power outage recognition unit 16, the power supply control unit 17 controls the power supply from the emergency power supply 10 to the first load equipment 42 and the second load equipment 43 by switching ON / OFF (conductive state / cut-off state) of the second relay 22 and the third relay 23 according to an operation schedule described later.

[0022] The server 50 is a computer system having a processor, memory, a communication unit, etc., and the memory of the server 50 stores emergency power supply data 52, load equipment data 53, and power outage event record data 54. As shown in Fig. 2, the emergency power supply data 52 stores information related to the performance (battery capacity, rated output) of the emergency power supply 10 and the operating conditions (master / sub) when multiple emergency power supplies are used. Fig. 2 shows an example in which conditions are registered for operating a first emergency power supply as a master and a second emergency power supply as a sub (slave) in a two-unit configuration of a first emergency power supply and a second emergency power supply.

[0023] 3, the load equipment data 53 stores information regarding the classification (disaster prevention, security), power consumption, number of operations, operating time period, operation time per operation, priority, and connection destination (first power line 31, second power line 33, or third power line 35) for each load equipment whose power supply is controlled by the power supply system 1. The power outage event record data 54 stores, for power outages that have occurred in the power system 2 in the past, power outage events (planned power outages, sudden power outages, etc.) and operation schedules of the load equipment operated in response to the power outages, in association with each other.

[0024] The server 50 communicates with an administrator terminal 70 used by an administrator A of the facility in which the disaster prevention equipment 41, the first load equipment 42, and the second load equipment 43 are installed, via the communication network 200. The administrator A operates the administrator terminal 70 to transmit information on the emergency power supply 10 and information on the disaster prevention equipment 41, the first load equipment 42, and the second load equipment 43 to the server 50. As a result, the information on the emergency power supply 10 is registered in the emergency power supply data 52, and the information on the disaster prevention equipment 41, the first load equipment 42, and the second load equipment 43 is registered in the load equipment data 53.

[0025] The processor of the server 50 reads and executes the control program for the server 50 stored in the memory of the server 50, thereby functioning as an operation schedule creation unit 51 that creates an operation schedule for the load equipment in the event of a power outage in the power system 2.

[0026] The power outage recognition unit 16 and the power supply control unit 17 provided in the emergency power source 10, and the operation schedule creation unit 51 provided in the server 50 constitute the power supply management device of the present disclosure.

[0027] [2. Creation of operation schedule] The process of creating an operation schedule for load equipment, which is executed by the operation schedule creation unit 51, will be described with reference to the flowcharts shown in Figures 4 and 5. When operation schedule creation instruction information is transmitted from the manager terminal 70 to the server 50 in response to the operation of the manager A on the manager terminal 70, the operation schedule creation unit 51 executes the process of creating an operation schedule according to the flowcharts shown in Figures 4 and 5.

[0028] In step S1 of Fig. 4, the operation schedule creation unit 51 refers to the load equipment data 53 to calculate the amount of stored power in the battery 20 required for the operation of the disaster prevention equipment 41 (sprinklers and smoke exhaust equipment in the example of Fig. 3). In the following step S2, the operation schedule creation unit 51 refers to the emergency power supply data 52 to recognize the capacity of the battery 20 of the emergency power supply 10, and calculates the surplus power of the emergency power supply 10 by subtracting the amount of stored power calculated in step S1 from the capacity of the battery 20.

[0029] In the next step S3, the operation schedule creation unit 51 creates an operation schedule for the first load equipment 42 and the second load equipment 43, which are load equipment other than the disaster prevention equipment 41, using the surplus power of the emergency power source 10 in the following manner. Step 1: Determine the operation timing of the load equipment with the highest priority first. Step 2...Allocate the number of times the device will be activated within the operating hours (e.g., daytime: 6-18:00, nighttime: 18:00-26:00). Step 3: Determine the operation timing of the additional equipment with the next priority. Step 4: If the operation timing overlaps with that of a load equipment with a higher priority and the total power supply exceeds a predetermined upper limit, shift the operation timing. The power supply to the load equipment is set based on the power consumption of each load equipment registered in the load equipment data 53 or the power consumption recognized when the load equipment was operated in the past. Step 5: Repeat steps 3 and 4 until there are no more target load equipment.

[0030] Here, when a planned power outage is scheduled and an operation schedule corresponding to the planned power outage is to be created, the operation schedule creation unit 51 refers to the power outage event record data 54 and searches for an operation schedule created for a planned power outage caused by a similar event that occurred in the past. Then, when a corresponding operation schedule is extracted, the current operation schedule is created based on the extracted operation schedule. This allows the operation schedule to be created efficiently.

[0031] Fig. 6 is an example of an operation schedule, and the time period during which the second power line 33 is in a conductive state (a state in which power is supplied to the first load equipment 42 to operate the first load equipment 42) and the time period during which the third power line 35 is in a conductive state (a state in which power is supplied to the second load equipment 43 to operate the second load equipment 43) are indicated by black bars. In the example of Fig. 6, the time period during which the second power line 33 is in a conductive state and the time period during which the third power line 35 is in a conductive state are shifted so that they do not overlap, thereby limiting the power supply from the emergency power source 10.

[0032] In the following step S4, the operation schedule creation unit 51 transmits information about the created operation schedule to the emergency power source 10. In the emergency power source 10 that has received the operation schedule information, the controller 15 records the operation schedule information in the recording medium 11. In the next step S5, the operation schedule creation unit 51 transmits operation schedule guide information indicating request target load equipment for which an operation timing request can be made and the operation timing of the request target load equipment in the operation schedule to the user terminals 71, 72.

[0033] In the user terminals 71, 72 that have received the operation schedule guide information, an operation schedule indicating the operation time periods of the requested load equipment, namely, elevators, water pumps, communications, and lighting, is displayed on the display unit, as shown in Fig. 7. If there is requested load equipment for which the user Ua wishes to change the operation time period, the user operates the user terminal 71 to send operation request information to the server 50 requesting a change in the operation time period of the desired requested load equipment. Similarly, if there is requested load equipment for which the user Ub wishes to change the operation time period, the user operates the user terminal 72 to send operation request information to the server 50 requesting a change in the operation time period of the desired requested load equipment.

[0034] In the following step S6, the operation schedule creation unit 51 judges whether or not operation request information for the requested load equipment has been received from the user terminal 71 or the user terminal 72. Then, when the operation schedule creation unit 51 has received the operation request information, it proceeds to step S20, and when the operation request information has not been received, it proceeds to step S7.

[0035] In step S20, the operation schedule creation unit 51 changes the operation schedule by setting the operation timing of the specified requested load equipment in accordance with the operation request information. Fig. 7 shows an example in which the operation timing of the water pump is changed from P1 in the latter half of 18 (18:00-21:00) to P2 in the middle of 21 (21:00-24:00).

[0036] In the next step S21, the operation schedule creation unit 51 transmits information about the changed operation schedule to the emergency power source 10. In the emergency power source 10, the operation schedule recorded in the recording medium 11 is updated to the changed operation schedule by the controller 15. In the following step S22, the operation schedule creation unit 51 transmits operation schedule guide information about the changed operation schedule to the user terminals 71, 72, and proceeds to step S6.

[0037] In step S7, the operation schedule creation unit 51 determines whether or not a power outage has occurred in the power system 2. The operation schedule creation unit 51 recognizes that a power outage has occurred in the power system 2 by receiving power outage information provided from an operation server or the like of the power system 2. If a power outage has occurred in the power system 2, the operation schedule creation unit 51 proceeds to the process of step S8 in Fig. 5, and if a power outage has not occurred in the power system 2, the operation schedule creation unit 51 proceeds to the process of step S6.

[0038] In step S8 of Fig. 5, the operation schedule creation unit 51 recognizes an occurring power outage event (planned power outage, sudden power outage, etc.) based on power outage information provided from an operation server of the power system 2, etc. In the following step S9, the operation schedule creation unit 51 judges whether or not it is necessary to modify the operation schedule according to the power outage event. For example, when the planned period of the planned power outage has been changed, or when the planned date and time of recovery from a sudden power outage has been announced and the period until the announced planned date and time of recovery is longer than a general recovery period, the operation schedule creation unit 51 judges that it is necessary to modify the operation schedule.

[0039] In the next step S31, the operation schedule creation unit 51 modifies the operation schedule in response to the power outage event so as to ensure operation of the necessary load equipment until power is restored to the power system 2. In this case, the operation schedule creation unit 51 may refer to the power outage event record data 54 to search for operation schedules that were created for power outages caused by similar events that occurred in the past, and when a corresponding operation schedule is extracted, the current operation schedule may be modified based on the extracted operation schedule.

[0040] In the next step S31, the operation schedule creation unit 51 transmits information about the corrected operation schedule to the emergency power source 10, and proceeds to step S10. In step S10, the operation schedule creation unit 51 associates the current power outage event with the created operation schedule, and records it in the power outage event record data 54 (see FIG. 1).

[0041] Here, in the emergency power supply 10, as described above, the operation schedule created by the operation schedule creation unit 51 and transmitted from the server 50 is recorded in the recording medium 11. Therefore, even if a large-scale power outage occurs over a wide area, causing the functions of the server 50 and the communication network 200 to stop and making it impossible to transmit the operation schedule from the server 50 to the emergency power supply 10, the power supply control unit 17 of the emergency power supply 10 can control the power supply to each load facility in accordance with the operation schedule recorded in the recording medium 11.

[0042] 3. Other embodiments Fig. 8 illustrates a power supply system 100 including two emergency power sources 10a and 10b. In Fig. 8, the same components as those in the power supply system 1 shown in Fig. 1 are denoted by the same reference numerals or the same reference numerals with the letter a or b added thereto, and the description thereof will be omitted. The emergency power source 10a and the emergency power source 10b are connected in parallel to the first power line 31, the second power line 33, and the third power line 35.

[0043] The emergency power supply 10a is set as a master, and the emergency power supply 10b is set as a sub. By performing communication between the controller 15a of the emergency power supply 10a and the controller 15b of the emergency power supply 10b, the power supply control unit 17a of the emergency power supply 10a controls the power supply from the emergency power supply 10b to the first load equipment 42 and the second load equipment 43 according to an operation schedule.

[0044] The supply and cut-off of power from the emergency power supply 10a to the first power line 31, and the supply and cut-off of power from the emergency power supply 10b to the first power line 31 can be individually switched by the first relay 21a of the emergency power supply 10a and the first relay 21b of the emergency power supply 10b. Similarly, the supply and cut-off of power from the emergency power supply 10a to the second power line 33, and the supply and cut-off of power from the emergency power supply 10b to the second power line 33 can be individually switched by the second relay 22a of the emergency power supply 10a and the second relay 22b of the emergency power supply 10b. In addition, the supply and cut-off of power from the emergency power supply 10a to the third power line 35, and the supply and cut-off of power from the emergency power supply 10b to the third power line 35 can be individually switched by the third relay 23a of the emergency power supply 10a and the third relay 23b of the emergency power supply 10b.

[0045] In the configuration of Fig. 8, the operation schedule creation unit 51 creates an operation schedule for a first load equipment 42 (elevator) and a second load equipment 43 (water pump) so that the timing of power supply from emergency power supply 10a and emergency power supply 10b to the same power line does not overlap, as exemplified in Fig. 9. In Fig. 9, the time period during which power is supplied from emergency power supply 10a is indicated by a black bar, and the time period during which power is supplied from emergency power supply 10b is indicated by a shaded bar.

[0046] In Fig. 9, for example, in the time slot of 6 (6:00 to 9:00), the operation schedule is such that power is supplied from the emergency power source 10b to the second load equipment 43 in the first half, and power is supplied from the emergency power source 10a to the second load equipment 43 in the second half. This prevents the emergency power sources 10a and 10b from supplying power to the second load equipment 43 at the same timing. In this case, there is no need to synchronize the power output of the emergency power sources 10a and 10b (such as synchronizing the phase of the power), which is necessary when the emergency power sources 10a and 10b output power to the second load equipment 43 at the same timing, and therefore the emergency power sources can be easily installed.

[0047] In the above embodiment, the emergency power supplies 10, 10a, 10b using a battery as a power source are exemplified, but the emergency power supply of the present disclosure may be an emergency power supply using an engine generator, a fuel cell, or the like as a power source.

[0048] In the above embodiment, the load equipment operated by the emergency power sources 10, 10a, 10b includes disaster prevention equipment, and therefore an operation schedule was created for the surplus power that has secured the storage capacity required for the operation of the disaster prevention equipment by the processing of steps S1 to S3 in FIG. 4. However, if the load equipment does not include disaster prevention equipment, an operation schedule can be created based on the capacity of the emergency power source and the registration information of the load equipment, without taking into account the operation of the disaster prevention equipment.

[0049] In the above embodiment, by recording the power outage event history data 54, when a power outage occurs, an operation schedule corresponding to the current power outage can be created by referring to the operation schedule associated with the past power outage event. However, a configuration may be adopted in which the power outage event history data 54 is not used.

[0050] In the above embodiment, steps S5, S6, and S20 to S22 in FIG. 4 are performed to change the operation schedule of the load equipment in response to requests from users Ua and Ub, but this process may be omitted.

[0051] 1 shows a configuration in which the power supply control unit 17 is provided in the emergency power supply 10, but the power supply control unit 17 may be provided in the server 50. In this case, operation instruction information for the first load equipment 42 and the second load equipment 43 is transmitted from the server 50 to the emergency power supply 10 according to the operation schedule. Also, the power supply management device of the present disclosure, which includes a power outage recognition unit, an operation schedule generation unit, and a power supply control unit, is configured as a function of the server 50. The same applies to FIG. 8.

[0052] 1 shows a configuration in which the operation schedule creation unit 51 is provided in the server 50, but the operation schedule creation unit 51 may be provided in the emergency power source 10. In this case, transmission and reception of operation schedules between the server 50 and the emergency power source 10 becomes unnecessary. Also, the power supply management device of the present disclosure, which includes a power outage recognition unit, an operation schedule creation unit, and a power supply control unit, is configured as a function of the emergency power source 10. The same applies to FIG. 8.

[0053] 1 and 8 are schematic diagrams showing the configuration of the power supply system 1,100 divided according to the main processing contents in order to facilitate understanding of the present invention, and the configuration of the power supply system 1,100 may be divided in other ways. Furthermore, the processing of each component may be executed by one hardware unit or by multiple hardware units. Furthermore, the processing of each component shown in FIG. 2 may be executed by one program or by multiple programs.

[0054] [4. Configuration supported by the above embodiment] The above embodiment is a specific example of the following configuration.

[0055] (Configuration 1) A power supply system comprising: an emergency power source; a power supply switching unit connected to a power system and the emergency power source, switching between supplying and cutting off power from the power system to a plurality of load equipment, and switching between supplying and cutting off power from the emergency power source to the plurality of load equipment individually for each of the load equipment; an operation schedule creation unit that creates an operation schedule for the plurality of load equipment in the event of a power outage in the power system based on registration information of the plurality of load equipment; a power outage recognition unit that recognizes a power outage in the power system; and a power supply control unit that, when a power outage in the power system is recognized by the power outage recognition unit, switches the load equipment to which power is supplied from the emergency power source in accordance with the operation schedule using the power supply switching unit. According to the power supply system of configuration 1, in the event of a power outage in the power grid, the power supply control unit switches the load equipment to which power is supplied from the emergency power source in accordance with the operation schedule created by the operation schedule creation unit based on the registration information of the multiple load equipment. This makes it possible to appropriately allocate the power supply from the emergency power source to the multiple load equipment in the event of a power outage in the power grid.

[0056] (Configuration 2) The registration information includes information on whether the equipment is an operation assurance target equipment that needs to be ensured to operate in the event of a power outage in the power system, and information on the power required for operation if it is an operation assurance target equipment, and the operation schedule creation unit recognizes the surplus power of the emergency power source excluding the power required for operation of the load equipment that is the operation assurance target equipment based on the registration information, and creates the operation schedule for the load equipment other than the operation assurance target equipment in accordance with the surplus power. According to the power supply system of configuration 2, it is possible to ensure the power necessary for the operation of the operation-guaranteed equipment during a power outage in the power grid, and then appropriately supply power to load equipment other than the operation-guaranteed equipment.

[0057] (Configuration 3) A power supply system according to Configuration 1 or 2, wherein the operation schedule creation unit creates the operation schedule by limiting the number of load equipment that are operated simultaneously so that the power supplied from the emergency power source does not exceed a predetermined upper limit power. According to the power supply system of configuration 3, the maximum supply power of the emergency power supply can be reduced, so that the emergency power supply can be made smaller and less expensive.

[0058] (Configuration 4) The power supply system of any one of configurations 1 to 3, wherein the emergency power supply has a recording medium, the operation schedule created by the operation schedule creation unit is acquired and stored in the recording medium, and the power supply control unit switches the load equipment to which power is supplied from the emergency power supply by the power supply switching unit in accordance with the operation schedule recorded in the recording medium when the power outage recognition unit recognizes a power outage in the power system. According to the power supply system of configuration 4, the operation schedule creation unit is provided in a server or the like, and even if a power outage occurs in the power system and the operation schedule created by the operation schedule creation unit cannot be obtained via communication, the power supplied from the emergency power source to multiple load equipment can be switched in accordance with the operation schedule recorded in a recording medium provided in the emergency power source.

[0059] (Configuration 5) A power supply system as described in any one of configurations 1 to 4, comprising a plurality of emergency power sources, wherein the power supply switching unit switches between supplying and cutting off power from the plurality of emergency power sources to the plurality of load equipment individually for each of the emergency power sources and each of the load equipment, and the operation schedule creation unit creates the operation schedule so as to prevent a state in which power is supplied from the plurality of emergency power sources to the same load equipment at the same time. According to the power supply system of configuration 5, the timing of power supply from the multiple emergency power sources is set by the operation schedule so that the output power from the multiple emergency power sources to the same load equipment does not compete with each other. This makes it possible to easily accommodate the addition of emergency power sources without the need for a coordination function to prevent the multiple emergency power sources from supplying power to the same load equipment at the same time.

[0060] (Configuration 6) A power supply system described in any one of configurations 1 to 5, wherein the operation schedule creation unit is provided in a server that communicates with a user terminal used by a user of the load equipment, and changes the operation schedule based on operation request information of the load equipment transmitted from the user terminal. According to the power supply system of configuration 6, the load equipment can be operated by reflecting the user's requests in the operation schedule, so that the impact of a power outage in the power system on the user's life can be reduced.

[0061] (Configuration 7) A power supply system as described in Configuration 6, wherein the operation schedule creation unit transmits to the user terminal operation schedule guidance information indicating requested load equipment, which is the load equipment for which the user can request operation, and the operation timing of the requested load equipment in the operation schedule. According to the power supply system of configuration 7, by providing the user with requested load equipment information indicating the requested load equipment and the operation timing of the requestable load equipment in the operation schedule, it is possible to facilitate the user's consideration of the operation request for the load equipment.

[0062] (Configuration 8) A power supply system according to any one of configurations 1 to 7, wherein, when a power outage in the power system is recognized by the power outage recognition unit, the operation schedule creation unit refers to power outage event history data that associates past power outage events in the power system with an applicable operation schedule, which is the operation schedule applied to the event, extracts the applicable operation schedule associated with an event similar to the recognized power outage event, and creates the operation schedule based on the extracted applicable operation schedule. According to the power supply system of configuration 8, by utilizing the operation schedules of the load equipment created in response to past power outages in the power system (planned power outages, sudden power outages due to lightning strikes or accidents, etc.), it is possible to efficiently create operation schedules that are convenient for users and the load equipment in response to subsequent power outages.

[0063] (Configuration 9) A power supply management device that is connected to a power system and an emergency power source, and controls the operation of a power supply switching unit that switches between supplying and cutting off power from the power system to a plurality of load equipment, and switches between supplying and cutting off power from the emergency power source to the plurality of load equipment individually for each of the load equipment, the power supply management device comprising: a power outage recognition unit that recognizes a power outage in the power system; an operation schedule creation unit that creates an operation schedule for the plurality of load equipment in the event of a power outage in the power system based on registration information of the plurality of load equipment; and a power supply control unit that switches the load equipment to which power is supplied from the emergency power source by the power supply switching unit in accordance with the operation schedule when a power outage in the power system is recognized by the power outage recognition unit. According to the power supply management device of configuration 9, in the event of a power outage in the power grid, the power supply control unit switches the load equipment to which power is supplied from the emergency power source in accordance with the operation schedule created by the operation schedule creation unit based on the registration information of the multiple load equipment. This makes it possible to appropriately allocate the power supply from the emergency power source to the multiple load equipment in the event of a power outage in the power grid. [Explanation of symbols]

[0064] 1,100...power supply system, 10,10a,10b...emergency power supply, 11,11a,11b...recording medium, 15,15a,15b...controller, 16,16a...power outage recognition unit, 17,17a...power supply control unit, 20,20a,20b...battery, 21,21a,21b...first relay, 22,22a,22b...second relay, 23,23a,23b...third relay, 31...first power line , 33...second power line, 35...third power line, 40...power switching circuit, 41...disaster prevention equipment, 42...first load equipment, 43...second load equipment, 50...server, 51...operation schedule creation unit, 52...emergency power supply data, 53...load equipment data, 54...power outage event record data, 70...administrator terminal, 71, 72...user terminal, 200...communications network, W...administrator, Ua, Ub...user.

Claims

1. Emergency power supply, a power supply switching unit connected to a power system and the emergency power supply, for switching between supplying and cutting off power from the power system to a plurality of load facilities, and for switching between supplying and cutting off power from the emergency power supply to the plurality of load facilities individually for each of the load facilities; an operation schedule creation unit that creates an operation schedule for the plurality of load equipment when a power outage occurs in the power grid based on registration information of the plurality of load equipment; A power outage recognition unit that recognizes a power outage in the power grid; A power supply control unit that switches the load equipment to which power is supplied from the emergency power source according to the operation schedule by the power supply switching unit when the power failure recognition unit recognizes a power failure in the power system; A power supply system comprising:

2. The registration information includes information on whether the equipment is an operation assurance target equipment that needs to be operated during a power outage in the power system, and information on the power required for operation if the equipment is an operation assurance target equipment, The operation schedule creation unit recognizes surplus power of the emergency power source excluding power required for operation of the load equipment that is the operation assurance target equipment based on the registration information, and creates the operation schedule for the load equipment other than the operation assurance target equipment according to the surplus power. The power supply system according to claim 1 .

3. The operation schedule creation unit creates the operation schedule by limiting the number of the load equipments to be operated simultaneously so that the power supplied from the emergency power source does not exceed a predetermined upper limit power. The power supply system according to claim 1 or 2.

4. The emergency power supply has a recording medium, acquires the operation schedule created by the operation schedule creation unit, and stores the operation schedule in the recording medium, When the power outage recognition unit recognizes a power outage in the power grid, the power supply control unit switches the load equipment to which power is supplied from the emergency power source by the power supply switching unit in accordance with the operation schedule recorded in the recording medium. The power supply system according to claim 1 or 2.

5. The emergency power source includes a plurality of the emergency power sources, the power supply switching unit switches between supplying and cutting off power from the plurality of emergency power sources to the plurality of load equipments, for each of the emergency power sources and each of the load equipments; The operation schedule creation unit creates the operation schedule so as to prevent a state in which power is supplied from a plurality of the emergency power sources to the same load equipment at the same timing. The power supply system according to claim 1 or 2.

6. The operation schedule creation unit is The load equipment is provided in a server that communicates with a user terminal used by the user of the load equipment, The operation schedule is changed based on operation request information of the load equipment transmitted from the user terminal. The power supply system according to claim 1 or 2.

7. The operation schedule creation unit transmits to the user terminal operation schedule guide information indicating requested load equipment, which is the load equipment for which the user can request operation, and operation timing of the requested load equipment in the operation schedule. The power supply system according to claim 6.

8. The operation schedule creation unit is When the power outage recognition unit recognizes a power outage in the power system, the power outage event record data that associates a power outage event that occurred in the power system in the past with an applied operation schedule that is the operation schedule applied in the event is referenced, and the applied operation schedule associated with an event similar to the recognized power outage event is extracted, and the operation schedule is created based on the extracted applied operation schedule. The power supply system according to claim 1 or 2.

9. A power supply management device that is connected to a power system and an emergency power source, switches between supplying and cutting off power from the power system to a plurality of load equipment, and controls operation of a power supply switching unit that switches between supplying and cutting off power from the emergency power source to the plurality of load equipment individually for each of the load equipment, A power outage recognition unit that recognizes a power outage in the power grid; an operation schedule creation unit that creates an operation schedule for the plurality of load equipment when a power outage occurs in the power grid based on registration information of the plurality of load equipment; A power supply control unit that switches the load equipment to which power is supplied from the emergency power source according to the operation schedule by the power supply switching unit when the power failure recognition unit recognizes a power failure in the power system; A power supply management device comprising:

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