JP2008271777A - Power supply method utilizing distributed power supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem, wherein for the conventional technology a method for changing the restoration priorities on the electric power company side is not established, by issuing power supply instructions from the electric power company side to neighboring power consumers who have distributed power supplies possessed by each the user himself, when an accident, such as, disconnection occurs in a plurality of power distribution facilities. <P>SOLUTION: In order to utilize each distributed power supply during the restoration, an arrangement state of distributed power supply devices (power storage devices and sustainable power supplies) 4 (or a state, showing to which unit power supply destination power can be supplied) is stored in a storage device 124. Power supply state from a main power supply is monitored for each user (or for each prescribed unit power supply destination similar to each user) of the main power supply. Power supply from distributed power supply devices is controlled, on the basis of the monitoring result and on the stored contents in the storage device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for utilizing a distributed power source possessed by a power consumer when a system power source is restored.

  Techniques relating to the control and utilization of distributed power sources are disclosed in Patent Documents 1 to 3. Patent Document 1 discloses a method in which a power consumer having a so-called distributed power supply disconnects an indoor distribution line from a commercial system power supply and supplies power by a self-sustained operation of the distributed power supply system when the system power supply is stopped. Has been. Patent Document 2 discloses a fuel cell device that effectively avoids an overload state of a commercial power supply system. Patent Document 3 discloses a small-scale distributed power supply system, which allows a business operator and a consumer to enjoy economic benefits by operating the system efficiently, and further promotes joint ventures in different industries. A scale-distributed power source and a heat supply system are disclosed.

JP 2002-152976 A JP 2001-68133 A JP 2002-186182 A

  As described in Patent Document 1 above, when a power consumer has a distributed power supply and the commercial power supply is stopped, depending on the consumer, it can be temporarily surpassed by the distributed power supply. We do not know which local power consumers have distributed power sources and supply their own power, and depending on the date and time, users can use their own distributed power sources to supply power to neighboring power consumers. By giving instructions to supply, the power company can change the priority of restoration, but this method has not been established.

  Patent Document 2 only discloses the use of a distributed power supply as an auxiliary, and does not consider using this distributed power supply at the time of recovery. Also in Patent Document 3, attention is paid only to the economic benefits when using a distributed power supply, and the use of the distributed power supply for recovery is not considered.

  Therefore, in the present invention, in order to utilize the distributed power supply at the time of restoration, the arrangement status of the distributed power supply device (power storage device) (or the status indicating which unit power supply destination can supply power) is stored in the storage device. In addition, for each user of the main power supply (or for each predetermined unit power supply destination similar thereto), the power supply status from the main power supply is monitored, and based on the monitoring result and the storage contents of the storage device, the distributed power supply apparatus It controls the power supply from. More specifically, the following control is performed.

  For example, an electric power company has a power management server, installs a power monitoring device for each predetermined unit power supply destination, and checks whether or not power is supplied by the system power monitoring function of this power monitoring device. It is also included in the present invention to monitor and specify a location where the system is disconnected in the power management server power distribution system DB on the power company side when a power failure occurs (power is not supplied). Further, the present invention also includes specifying a unit power supply destination that is affected by the location specified above (or determining whether power is supplied to each unit power supply destination).

  In addition, as an arrangement state of power storage devices, the present invention also includes storing power storage devices that supply power for each unit power supply destination in association with priority. In this case, the priority is set in the order of short power supply time, which is the time until the power supply of the main power is started, or in order of short distance from the unit power supply destination to the dispatch base for power supply source recovery measures. (Alternatively, it may be calculated using at least one of them). Here, the present invention also includes calculating the priority order of the power supply time dynamically from the cutting state of the electric wires each time.

  The present invention also stores the priority of power supply by the power storage device for each unit power supply destination, and also stores information (priority) about each power storage device when performing a plurality of power storage devices. It is also included. That is, control is performed so that power supply is started in order of priority among the unit power supply destinations that have failed. In this case, it may be determined based on the power supply time or the distance from the power storage device (and may be calculated from an element including at least one). Furthermore, the present invention also includes calculating the priority of the power supply time dynamically from the cutting state of the electric wire each time.

  The unit power supply destination includes a contractor (including organization) unit with a power company, a plurality of contractor units, a predetermined area, and a power supply facility (or a supply destination associated therewith).

  In addition, the distributed power supply device of the present invention includes a so-called private power generation device (which only needs to have a function of generating power or a function of supplying power through its own operation). In this case, it does not matter whether it has a power storage function without being combined with the power storage device.

  In addition, in the present invention, when a combination of a private power generation device and a power storage device and a power storage device are mixed, the priority of the private power generation device is set higher or the priority is calculated and distributed based on this. Determining a power supply is also included.

  Further, according to the present invention, the supply from the main power is stopped in correspondence with each unit power supply destination, that is, the power supply capability of the distributed power supply apparatus that supplies power to the unit power supply destination and the supply available time. This includes calculating according to the situation (for example, in the event of an accident) and determining restoration priority ranking of the supply system from the main power according to the calculated power supply time for each unit power supply destination. It is.

  According to the present invention, it is possible to efficiently perform power recovery using a distributed power source.

  First, an outline of the present embodiment will be described. An electric power company has a distribution facility for supplying power to consumers. However, due to a natural disaster such as an earthquake or a typhoon, the distribution facility may be disconnected and the power supply may be interrupted. On the other hand, in order to protect the environment, it is predicted that the diffusion of power storage devices for storing power in power storage devices at night and supplying power from power storage devices during peak hours during the day will be promoted. FIG. 1 shows a situation in which three disconnection accidents occur almost simultaneously in such an environment and an emergency dispatch for restoration is necessary.

  In such an environment, it is necessary to carry out restoration work for a plurality of areas at once, which requires a lot of manpower and workers, but the power supply monitoring device according to the present invention is installed in each consumer, An electric power company has a power monitoring server that can communicate with the power monitoring device. The power monitoring server monitors whether or not grid power is supplied to each customer. When the system power supply is stopped, the disconnection location is specified using the power distribution system DB in the power supply monitoring server. In addition, we investigate customers who have power storage devices that can cooperate during disasters in each region using the power distribution system DB in the power monitoring server, and confirm whether power can be supplied in an emergency in each region. However, if power can be supplied, switching to the power supply for each region and grasping the length of the power supply time can give priority. About this prioritization method, from the power supply time from the main power source such as a distributed power source or a power company and from the recovery target to one of the dispatching bases of the power company (eg the shortest distance or the base in charge of the recovery target) The priority may be determined in consideration of the distance or time. For example, the power supply time and distance (time) may be ranked by setting data within a certain range as predetermined values, and the ranks (numerical values) may be multiplied or added.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall configuration diagram for explaining the present embodiment. As explained earlier, electric power companies have distribution facilities connected to substations. Further, it is assumed that a power supply monitoring device is provided to consumers in order to realize the present embodiment. Further, depending on the region, there are regions where power storage devices are deployed and regions where such devices are not.

  FIG. 2 shows a system configuration diagram for explaining the present invention. As a power company system, a power supply monitoring server 1 and a customer management system 8 are provided, and power supply monitoring devices 3 to 6 are connected to the power supply monitoring server 1 and each customer via a network 2. In addition, the power storage device 7 is connected to the power supply monitoring device 5. The power monitoring server 1 includes a CPU 101, an I / F 102, a memory 103, a communication unit 104, and an I / O 105. The I / F 102 in this case is an input / output interface such as buttons, a display, and various keyboards. In order to realize the function of executing the disaster recovery prioritization method of the present embodiment, the program 150 stored in the program database 160 such as a rewritable memory is read into the memory 103 and executed by the CPU 101 which is an arithmetic unit. Between the various function units and the communication means 104, the I / O unit 105 performs data buffering and various mediation processes. The DB includes a power distribution system DB 120, a regional power supply DB 121, and a disaster recovery DB 122. Information such as the customer management number, user name, power consumption, storage capacity, and distributed power supply used in the power distribution system DB 120 and the regional power supply DB 121 may be obtained from the customer DB 124. The program 150 includes a power monitoring function 106, a power supply capable consumer search function 107, a power supply range specifying function 108, a power supply instruction function 109, and a communication function 110. In conjunction with the system power supply monitoring function 306 of the power supply monitoring apparatus installed in the system, it is a function to check whether the system power supply to each consumer is performed. The power failure flag of the distribution system DB 120 is set.

  In addition, when each customer switches to power supply from a distributed power source such as a power storage device, this function is linked to the distributed power supply monitoring function 307 and confirms that power supply from the distributed power source has started. The distributed power supply customer search function 107 is a function for searching for a consumer who has a distributed power supply and can cooperate with power supply in an emergency from the power distribution system DB 120. The power supply range identification function 108 identifies the disaster area, sets the area code of the disaster recovery DB 122, and if distributed power supply such as a power storage device for each area is possible in the group where the disaster occurred, the group for each area This is a function for creating the DB 123. The distributed power supply instruction function 109 is a function for issuing a power supply instruction to a distributed power supply such as a power storage device of each consumer. The communication function 110 is a communication function that uses the communication unit 104 to exchange data with the power supply monitoring devices 3 to 6 of each consumer. A power monitoring device (house H) 4 is a power monitoring device installed in a consumer who does not have a distributed power supply device. The power monitoring apparatus includes a CPU 201, an I / F 202, a memory 203, a communication unit 204, and an I / O 205.

  In this case, the I / F 202 is an input / output interface such as buttons, a display, and various keyboards. In order to realize the function of executing the disaster recovery prioritization method of the present embodiment, the program 250 stored in the program database 260 such as a rewritable memory is read into the memory 203 and executed by the CPU 201 which is an arithmetic unit. Between the various function units and the communication means 204, the I / O unit 205 performs data buffering and various mediation processes. This program 250 includes a system power supply monitoring function 206 and a communication function 207.

  The system power supply monitoring function 206 monitors whether the system power supply of the target consumer (in this case, H house) is being performed, and generates a power failure “present” signal when the system power supply stops. Then, using the communication function 207, the data is sent to the power supply monitoring server 1 of the power company. A power monitoring device (F factory) 5 is a power monitoring device installed in a consumer having a distributed power source such as a power storage device. The power supply monitoring apparatus includes a CPU 301, an I / F 302, a memory 303, a communication unit 304, and an I / O 305.

  The I / F 302 in this case is an input / output interface such as buttons, a display, and various keyboards. In order to realize the function of executing the disaster recovery prioritization method of the present invention, the program 350 stored in the program database 360 such as a rewritable memory is read into the memory 303 and executed by the CPU 301 as the arithmetic unit. Between the various function units and the communication unit 304, the I / O unit 305 executes data buffering and various mediation processes. The program 350 includes a system power supply monitoring function 306, a distributed power supply monitoring function 307, a storage capacity confirmation function 308, a power storage device start / stop function 309, and a communication function 310. The system power supply monitoring function 306 constantly monitors whether the system power supply of the target consumer (in this case, factory F) is being performed, and when the system power supply is stopped, a power failure “present” signal is output. It is created and sent to the power supply monitoring server 1 of the electric power company using the communication function 310.

  The distributed power supply monitoring function 307 is a function for monitoring the start of distributed power supply of the target consumer (in this case, the F factory). The storage capacity confirmation function 308 is a function for monitoring the storage capacity of the power storage device 7. The power storage device start / stop function 309 is a function for controlling the start and stop of power supply from the power storage device. The communication function 310 is a communication function that uses the communication unit 304 to exchange data with the power supply monitoring server 1. The power storage device 7 includes a power supply management function 401 and a communication function 402.

  The power supply management function 401 is a function for starting and stopping power supply to the power storage device 7 in response to an instruction from the distributed power supply monitoring device 7. The communication function 402 is a function for communicating with the distributed power supply monitoring device 7.

Next, the database will be described.
FIG. 3 a shows the power distribution system DB 120. The distribution system DB is a DB indicating a customer management number, a region code, a hierarchy indicating a connection method from a substation to a customer of the distribution system, a power outage flag, cooperation availability, and presence / absence of distributed power supply. There are nodes and flags in the hierarchy, and telephone pole numbers (D1 to D10) and user codes (H, E, F, etc.) are set in the nodes. Note that the utility pole number mentioned here can be considered similarly even if it is read as the contact number of the underground line. The initial value of the hierarchy flag is set to 0, and FIG. 3A shows a state before a power failure occurs.

  FIG. 3b shows a state in which a power failure occurs, the power failure flag “present” is set for the power distribution system DB 120, and then only the hierarchy flag that leads to the user with the power failure flag “none” is set.

  FIG. 3c shows a state in which 1 is set to the flag having the same pole number as the pole number for which flag 1 is set, and 2 is set to the hierarchy flag in which flag 1 is not set in the power failure flag “present”. ing. FIG. 3d shows a state in which the distributed power supply is started for each region, and the flag for the user code of the consumer who started the supply is set to 3. FIG. 4 shows the customer DB 124 of the power company system. The customer DB 124 holds information such as a customer management number, a user name, an address, a power usage (A), a power usage (V), a storage capacity, and the presence or absence of a distributed power source. The customer DB 124 is used when creating the power distribution system DB 120 and the regional power supply DB 121 described below.

  FIG. 5 a shows the regional power supply DB 121. The regional power supply DB 121 holds customer management number, regional code, user name, address, power usage (A), power usage (V), power storage capacity, current power storage capacity, cooperation availability flag, and information on presence / absence of distributed power supply. FIG. 5a shows an initial state before the distributed power supply is started. FIG. 5 b shows the regional power supply DB 121 after the distributed power supply is started, and shows a state where the cooperation availability flag is set to “ST”. 3a to 3d and FIGS. 5a to 5b may be a single DB.

  FIG. 6 a shows the disaster recovery DB 122. No., region code, disaster occurrence section, distributed power supply time, DB for setting recovery order. FIG. 6a shows a state where only the region code where the disaster occurred is input. FIG. 6B shows the DB after the disaster recovery ranking process according to this embodiment is performed and the recovery ranking information is input.

  FIG. 7 shows a group DB 123 created for each district, and holds information on user codes, power usage, and power supply. Because this group DB123 is created for each area where a disaster has occurred, and it is checked whether or not it is possible to supply power at the time of a disaster with distributed power supply in the area, and a guideline for the power supply time for each area is calculated with distributed power supply is there.

The processing procedure of the present invention will be described in detail below with reference to the drawings.
FIG. 8 shows a processing procedure in one embodiment of the present invention. The left side shows the processing of the power company system, and the right side shows the processing of the system on the user side.

  Step 1000 shows a process of creating the power distribution system DB 120 in the power supply monitoring server 1 of the power company system. Here, the region codes are divided when there is a difference between the utility pole numbers (contact numbers) set in the nodes of the hierarchy 1 and hierarchy 2 of the power distribution system DB 120. In this case, hierarchies 1 and 2 are set, but to which hierarchy is performed, the range in which power can be supplied for each area is verified in advance, and the area code is initialized and stored in the distribution system DB 120.

  In step 1005, the fact that a system power supply unusable area has occurred due to a natural disaster or the like has been found by the power monitoring devices 3 to 6 provided on each user side, and the power failure flag of the power distribution system DB 120 is set to “present”. Processing is shown.

  Step 1010 is a process of setting the area code in the area code column of the disaster recovery DB 122 for the area with the power failure flag “present” in the distribution system DB 120.

  Step 1015 is a process for identifying a disaster location by using the power failure flag of the power distribution system DB 120 together to distinguish between a utility pole number connected to the presence of system power supply and a utility pole number not connected. Step 1015 will be described in detail with reference to FIG. 9 (described later).

  Step 1020 is a process of investigating whether or not a group capable of supplying power with a distributed power source can be created for the target disaster area from the power distribution system DB 120 and calculating a distributed power source power supply time for each group. Step 1020 will be described in detail with reference to FIG.

  Step 1025 is a process in which the group DB 123 and the distribution system DB 120 are used to specify the power supply range by the distributed power source and to give a control instruction to the switch on the utility pole (or on the contact).

  Step 1030 is processing in which when the flag paired with the user code of the power distribution system DB 120 is 3, an instruction to start power supply is given to the distributed power supply (in this case, the power storage device).

  In step 1035, the distributed power supply monitoring function 307 of the power supply monitoring device detects that the distributed power supply (in this case, the power storage device) in the target disaster area has started the power supply in an emergency, and the cooperation permission flag of the regional power supply DB 121 is detected. This is a process of setting “ST” to.

  Step 1040 confirms that the cooperation permission flag of the user who requested the cooperation of the regional power supply DB 121 for the disaster target area is “ST”. Set 0 to the distributed power supply time of the recovery DB 122.

  Step 1045 sets the restoration order in the order of registration with respect to the disaster recovery DB 122 in the order of short supply time by the distributed power source, and in the same time, and displays the information of the disaster recovery DB 122 and the map information together on the screen. It is a process to display.

  Step 2000 is a process in which a distributed power source (in this case, a power storage device) in each region operates in response to an instruction to start power supply from the power supply monitoring server 1.

  Step 2005 is a process of transmitting to the power company power supply monitoring server 1 that the distributed power supply (in this case, the power storage device) in each region has been operated in response to an instruction to start power supply from the power supply monitoring server 1.

Next, the processing in step 1015 will be described in detail with reference to FIG.
Step 3000 is a process of setting 1 to the flag of each layer for the user with no power outage flag “No” in the distribution system DB 120.

  Step 3005 is a process of setting flag 1 in the same manner when the same utility pole number (contact number) as that in which the flag 1 is set in the processing step 3000 is present at each hierarchical level node in the distribution system DB 120.

  Step 3010 is a process of setting a flag 2 for each tier in which the flag 1 is not set in each tier for the user with the power failure flag “present” in the distribution system DB 120.

  Step 3015 is a process of setting the utility pole number (contact number) in which the hierarchical flag 1 and 2 are adjacent to each other for each area code of the power distribution system DB 120 for the disaster recovery section of the disaster recovery DB 122.

Next, the processing in step 1020 will be described in detail with reference to FIG.
Step 4000 is a process of creating a group DB 123 for each region for the user whose flag 2 is set in the power distribution system DB 120.

Step 4005 is a process for calculating and setting power consumption from the power consumption of the regional power supply DB 121 for each customer for the group DB 123, and calculating and setting the supply amount from the regional power supply DB 121. .
Step 4010 is a process of calculating and setting the total value of power consumption and supply amount for each group DB. Step 4015 is processing for setting an initial value 0 to the distributed power supply time of the disaster recovery DB 121.

Step 4020 is a process of setting n to 10. Here, n is a time for determining how many minutes it is desired to operate when power is supplied from a distributed power source in each region. In this case, 10 minutes and n = 10. However, the program may be designed so that n is a table format and can be changed by table setting.
Step 4025 is processing for selecting the first group DB. Here, the creation order of the group DB is the order in which the area codes are set in the disaster diffusion DB 122.

Step 4030 is a process that proceeds to Step 4035 when the supply amount (S) ÷ power consumption (U) is n or more, and proceeds to Step 4045 when it is less than n.
Step 4035 is a process of setting 3 to the flag of the distributed power supply user in the power distribution system DB 120.

  Step 4040 is a process of setting the value of supply amount (S) ÷ power consumption (U) for the distributed power supply time of the disaster recovery DB 122.

Step 4045 is processing for selecting the next group DB.
Step 4050 checks whether or not the next target group DB 123 exists. If it exists, the process proceeds to step 4045, and if it does not exist, the process proceeds to step 1025.

  According to the present embodiment, for disaster recovery of power transmission / distribution lines, etc., the location of the disaster is identified by the database system in the power company system, and then the power supply by the power storage devices in each region is controlled. The restoration prioritization can be adjusted by the capacity of the power storage device.

  Next, as another embodiment, by combining sustainable in-house power generation devices such as gas engines, gas turbines, and fuel cells with these power storage devices, the priority of recovery in the event of a disaster becomes more flexible. Explain cases that can be matched. “Sustainable” means generating electricity by operating. For this reason, when fuel etc. run out, electric power supply stops. Further, it is possible to express that power can be supplied without receiving power supply from others.

  In addition, you may comprise so that a self-power-generation device single-piece | unit may be used (a combination of a self-power-generation device simple substance, a self-power-generation device, and an electrical storage apparatus may be mixed).

  FIG. 11 shows an example in which the total amount of electricity used in the factory F is increased from 50 A to 200 A, and a 15000 VA private power generation device (here, a gas engine is assumed) is added as a sustainable power source.

  FIG. 12 shows a system configuration diagram when a private power generation device 9 as a sustainable power supply is added. The private power generation device 9 includes a power generation control function 501 that adjusts the amount of power generation, and a communication function that communicates with the power storage device 7 and the power supply monitoring device 5.

  FIG. 13 a shows an example of the data structure of the distribution system database when a private power generation device is added to the F factory. As a private power generator is added to the F factory, “Yes” is set in the private power generator column of the distributed power source.

  13b, 13c, and 13d also show examples of the data structure of the distribution system database when a private power generation device is added to the F factory. As a private power generator is added to the F factory, “Yes” is set in the private power generator column of the distributed power source.

  FIG. 14 shows the database structure of the customer database. In this case, 200/2 indicates that the power consumption of the factory F is 200A at normal times and 100V, and that it is 100A which is half of 200A in an emergency. The database may have a structure that separates a normal time and an emergency time. Further, the private power generation device capacity and the private power generation device presence / absence flag are added to the customer database of FIG.

  FIG. 15a shows a regional power supply DB when a private power generation device is added. F factory is increased to 200A, and in the event of an emergency, the use of 100A, half of that, is expressed as 200/2 in power consumption. In addition to the database structure of FIG. 5, a private power generator presence / absence flag is added.

  16a and 16b show the disaster recovery DB, and in the distributed power supply time column, not only the distributed power supply time of each region but also the power supply time to the target region can be controlled. It is assumed that a “CON” flag is inserted.

  FIG. 17a shows a group DB 623 for a group with a sustainable distributed power source. In addition to the database structure of the group DB 123 of FIG. 7, information on the amount of power supply by a sustainable distributed power source is added. This group DB 623 is used to determine whether or not it is possible to supply power to the target group with a sustainable distributed power source.

  FIG. 17b shows a group DB created for each district, and holds the same database structure as FIG. This group DB 623 is a group DB used when there is no sustainable distributed power source and when the power supply capability to the target area is insufficient, if any.

Hereinafter, the processing procedure when there is a sustainable distributed power source will be described in detail with reference to the drawings.
FIG. 18 shows a processing procedure in one embodiment of the present invention. The left side shows the processing of the power company system, and the right side shows the processing of the system on the user side.

  Step 5000 shows processing for creating the power distribution system DB 620 in the power supply monitoring server 1 of the power company system. Here, the region codes are divided when there is a difference between the utility pole numbers (contact numbers) set in the nodes of the hierarchy 1 and hierarchy 2 of the power distribution system DB 620. In this case, hierarchies 1 and 2 are used, but to which hierarchy is to be performed, the range in which power can be supplied for each area is verified in advance, and the area code is initialized and stored in the distribution system DB 620.

  In step 5005, the fact that an area where system power supply is not possible has occurred due to a natural disaster or the like has been found by the power monitoring devices 3 to 6 installed on each user side, and “Yes” is set in the power failure flag of the distribution system DB 620. Processing is shown.

  Step 5010 is a process of setting the region code in the region code column of the disaster recovery DB 622 for the region with the power failure flag “present” in the distribution system DB 620.

  Step 5015 is a process of identifying a disaster location by distinguishing the utility pole number connected to the presence of the system power supply from the utility pole number not connected based on the power failure flag of the distribution system DB 620. Step 5015 will be described in detail with reference to FIG. 19 (described later).

  Step 5020 is a process of investigating from the power distribution system DB 620 whether or not a group capable of supplying power with a distributed power source can be created for the target disaster area, and calculating a distributed power source power supply time for each group. This step 5020 will be described in detail with reference to FIG.

  Step 5025 is a process in which the group DB 623 and the distribution system DB 620 are used to specify the power supply range by the distributed power source and to give a control instruction to the switch on the utility pole (or on the contact).

  Step 5030 is a process of instructing the distributed power supply device (in this case, the power storage device and the gas engine) to start power supply when the flag paired with the user code of the power distribution system DB 620 is 3. .

  In step 5035, the distributed power supply monitoring function 307 of the power supply monitoring device detects that the distributed power supply device (in this case, the power storage device) in the target disaster area has started power supply in an emergency, and whether or not the regional power supply DB 621 can cooperate. This is a process of setting “ST” in the flag.

Step 5040 confirms that the cooperation permission flag of the user who requested the cooperation of the regional power supply DB 621 for the disaster target area is “ST”. 0 is set in the distributed power supply time of the recovery DB 622.

  Step 5045 gives priority to the disaster recovery DB 622 in the order of the distributed power supply time in numerical order and in ascending order of time. At this time, for areas where “CON” is entered in the distributed power supply time column of the disaster recovery DB 622, measures are taken after the numerical value, and priorities are given in consideration of the order of work and cost. It is a process of displaying together with the map.

  Step 6000 is a process in which a distributed power source (in this case, a power storage device or a gas engine) in each region operates in response to an instruction to start power supply from the power monitoring server 1.

  Step 6005 is a process for transmitting to the power supply monitoring server 1 of the electric power company that the distributed power supply in each region (in this case, the power storage device or the gas engine) has been operated in response to an instruction to start power supply from the power supply monitoring server 1. It is.

Next, the processing in step 5015 will be described in detail with reference to FIG.
Step 7000 is a process of setting 1 to the flag of each hierarchy for the power failure flag “none” user of the distribution system DB 620.

  Step 7005 is a process of setting flag 1 in the same manner when the same utility pole number (contact number) as that in which the flag 1 is set in the processing step 7000 is present in each hierarchical level node in the distribution system DB 620.

  Step 7010 is a process of setting a flag 2 for each tier in which the flag 1 is not set in each tier for the user with the power failure flag “present” in the distribution system DB 620.

  Step 7015 is a process of setting the utility pole number (contact number) in which the hierarchical flag is adjacent to 1 and 2 for each area code of the distribution system DB 620 for the disaster recovery section of the disaster recovery DB 622.

Next, the processing in step 5020 will be described in detail with reference to FIG.
Step 9000 is processing for setting an initial value 0 in the distributed power supply time column of the disaster recovery DB 622.

  Step 9005 is a process of setting n to 10. Here, n is a time for determining how many minutes it is desired to operate when power is supplied from a distributed power source in each region. In this case, 10 minutes and n = 10. However, the program may be designed so that n is a table format and can be changed by table setting.

  Step 9006 is a process of selecting the first area code in the power distribution system DB 622.

  In the step 9010, if there is a sustainable power source in the region where the flag 2 is set in the distribution system DB 620, the process proceeds to the process of 9500, and if not, the process proceeds to the process of 9015. .

  Step 9015 is processing for creating a group DB having the database structure of FIG. 17B for the target area in which the flag 2 is set in the power distribution system DB 620.

  Step 9020 is a process of calculating and setting power usage from the power usage of the regional power supply DB for each user in FIG. 15A for the group DB in the database structure in FIG. 17B. For example, in the case of the user code “K”, the amount of power used is 20 (A) × 100 (V), so 2000 (W).

  Also, the supply amount is a process of referring to the current power storage amount of the regional power supply DB 621 in FIG. 15a and setting it in the power supply amount column of the power storage device of the target group DB. For example, in the case of the user code “P”, since the current storage capacity is 12000 (Wh), 720000 (W · min) is set.

Step 9025 is a process for calculating and setting the total value in the total column of the target group DB.
Step 9030 is a process that proceeds to Step 9035 when the supply amount (S) ÷ power consumption (U) is n or more, and proceeds to Step 9045 when it is less than n.
Step 9035 is a process of setting 3 to the flag of the distributed power supply user in the distribution system DB 620.

Step 9040 is a process of setting the value of supply amount (S) ÷ used power (U) for the distributed power supply time of the disaster recovery DB 622.

In step 9045, the regional power supply DB 621 confirms whether or not the next target region exists. If Yes, the process proceeds to 9050, and if No, the process proceeds to 5025.
Step 9050 is processing for selecting the next region code.

  Step 9500 is a process of creating a group DB having the database structure of FIG. 17A for the target area.

Step 9505 is a process of calculating and setting power usage from the power usage amount 621 of the regional power supply DB for the group DB of the database structure of FIG. 17A. For example, in the case of the user code “E”, the power usage amount is 20 (A) × 100 (V), and thus 2000 (W). Here, the amount of power used by the user code “F” is normally 200 (A), but it corresponds to an emergency (in this case, a contract is made in advance that the factory operation is temporarily reduced by half or the like. 200 (A) / 2, that is, 100 (A) and 100 (V) are 10,000 (W).
Step 9506 calculates and sets the total value in the total column of the target group DB.

In step 9510, if the total power usage amount of the target group DB is within the private power generation supply amount, the process proceeds to 9515. Otherwise, the process proceeds to 9015.
Step 9515 is a process of setting “CON” to the distributed power supply time of the disaster recovery DB 622.

  Step 9520 is a process of setting 3 to the flag of the distributed power supply user in the distribution system DB 620.

  According to the present embodiment, for disaster recovery of power transmission / distribution lines, etc., the location of the disaster is specified by the database system in the power company system, and then the power storage devices in each region and the private power generation possessed by the user side This makes it possible to temporarily control the power supply of the apparatus to help prioritize recovery.

Overall configuration diagram System Configuration Data structure example of distribution system database Data structure example of distribution system database Data structure example of distribution system database Data structure example of distribution system database Customer database data structure example Data structure example of regional power supply database Data structure example of regional power supply database Data structure example of disaster recovery database Data structure example of disaster recovery database Group database data structure example Process flow diagram Process flow diagram for identifying disaster locations Process flow diagram for prioritizing recovery order Overall configuration diagram when a private power generator is present System configuration diagram when a private power generator is present Data structure example of distribution system database considering cooperation with private power generator Data structure example of distribution system database considering cooperation with private power generator Data structure example of distribution system database considering cooperation with private power generator Data structure example of distribution system database considering cooperation with private power generator Data structure example of customer database considering cooperation with private power generation equipment Example of data structure of regional power supply database considering cooperation with private power generator Example of data structure of regional power supply database considering cooperation with private power generator Data structure example of disaster recovery database considering cooperation with private power generator Data structure example of disaster recovery database considering cooperation with private power generator Data structure example of group database considering cooperation with private power generator Group database data structure example Process flow diagram considering cooperation with private power generation equipment Process flow diagram for identifying disaster locations Process flow diagram for prioritizing recovery order considering cooperation with private power generation equipment

Explanation of symbols

1 ... Power supply monitoring server
2 ... Network
3-6 ... Power supply monitoring device 7 ... Power storage device 8 ... Customer management system 9 ... Private power generation device

Claims (9)

In a power supply method using a plurality of distributed power supply devices capable of supplying electricity,
Preliminary storage status of the plurality of distributed power supply devices, the storage status indicating the relationship with the unit power supply destination, and the system information indicating the main power supply system are stored in the storage device,
Monitor the power supply status from the main power to the supplier,
When it is detected that the supply from the main power has stopped, the location where the stop has occurred is identified based on the grid information, the affected unit power supply destination is identified based on the identified location, and identified Based on the unit power supply destination and the arrangement state, the distributed power supply device that supplies power to the unit power supply destination for which power supply has been stopped is determined.
A power supply method using a distributed power supply apparatus, comprising: outputting a control signal for supplying power to the unit power supply destination from which the power supply has been stopped from the determined distributed power supply apparatus. In the power supply method using the distributed power supply device according to claim 1,
The storage device stores, as the arrangement information, the unit power supply destination and a distributed power supply device capable of supplying power to the unit power supply destination in association with each other,
A power supply method using a distributed power supply apparatus, wherein the determination of a distributed power supply apparatus that supplies the power is determined according to a preset priority order. In the power supply method using the distributed power supply device according to claim 2,
The storage device uses a distributed power supply device that stores, as the position information, a distributed power supply device that can supply power to the unit power supply destination in association with a priority order of power supply. Power supply method. In the electric power supply method using the distributed power supply device according to claim 3,
In the priority order, the storage device is a power supply time that is a time until the power supply of the main power is started, or a dispatch base for a power supply source recovery measure from a unit power supply destination that is a recovery target destination A power supply method using a distributed power supply device characterized by using a distance up to. In the power supply method using the distributed power supply device according to any one of claims 1 to 4,
The storage device further stores a priority of power supply for the unit power supply destination,
When a plurality of affected unit power supply destinations are specified, the distributed power supply device determination processing is executed in descending order of priority for the plurality of specified unit power supply destinations. Power supply method using In the power supply method using the distributed power supply device according to claim 5,
The storage device has, as the priority, a power supply time that is a time until the power supply of the main power is started or a dispatch base for a power supply source recovery measure from a unit power supply destination that is a recovery target destination A power supply method using a distributed power supply device, characterized in that the power supply method uses a distributed power supply device. In the power supply method using the distributed power supply device according to any one of claims 1 to 6,
The unit power supply destination is one of a contractor unit with an electric power company, a plurality of contractor units, a predetermined area, a power supply facility, or a supply source associated therewith, A power supply method using a device. The power supply method according to any one of claims 1 to 7,
The distributed power supply device includes at least one of a power storage device capable of storing electricity and a power generation device that generates power by its own operation. In the electric power supply method using the distributed power supply device according to any one of claims 1 to 8,
Calculate the power supply capability of the distributed power supply device associated with each unit power supply destination and its available supply time according to the situation when the supply from the main power is stopped,
A power supply method according to claim 1, further comprising: determining restoration priority ranking of a supply system from the main power according to the calculated power supply time for each unit power supply destination.

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