JP6542510B2 - POWER MANAGEMENT SYSTEM AND POWER MANAGEMENT METHOD - Google Patents

Description

  The present invention relates to a power management system and a power management method.

  When the power plant is damaged by a large-scale natural disaster, the power demand may exceed the power supply capacity. When the power demand is expected to exceed the power supply capacity, the power company may carry out a so-called planned power cut, in which a power cut is performed prior to a notice of power transmission stop. Moreover, as a method of suppressing the power consumption while avoiding the planned power failure, for example, the monitoring device of the power company monitors the power supply and the power consumption, and the relationship between the power supply and the power consumption has a predetermined condition. When it is satisfied, there is a method of turning off the power of the electric device using the power based on the command from the monitoring device (see, for example, Patent Document 1).

  The implementation of planned blackouts and the suppression of the power consumption described in Patent Literature 1 are performed in predetermined area (area) units. Since the suppression of the power consumption limits the use of the electric device by the user, it is desirable that the range of the area in which the suppression is performed be minimized.

JP, 2013-9568, A

  However, since the amount of power consumption suppressed in each area is largely different depending on the characteristics of each facility included in each area (for example, the type of facility, the family configuration pertaining to the facility, etc.) It is difficult to make the area that suppresses For this reason, for example, the area which performs control of electric power consumption may be set more than necessary, and the use of the electric equipment more than necessary may be restrict | limited. Further, when setting an area for suppressing the power consumption, for example, an area including a facility with high urgency such as a hospital may be excluded from the candidates for the area for suppressing the power consumption. In this case, the other facilities (facilities other than the hospital) included in the area are also excluded from the target of the power consumption suppression by being included in the area even if it is a facility that should originally suppress the power consumption. It is not preferable from the viewpoint of fairness among facilities. As mentioned above, in the conventional electric power consumption suppression method, there exists a possibility that the convenience of the user who uses an electric device may be impaired.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a power management system and a power management method for controlling power supply in a mode with high convenience for a user who uses an electric device.

  A power management system according to the present invention is a power management system that manages power supplied to an electrical device, and is an acquisition unit that acquires facility information that is information indicating features of a plurality of facilities included in each of a plurality of areas. And calculation means for calculating the possible reduction amount of power that can be reduced in each facility based on the facility information acquired by the acquisition means, and a predetermined area among the possible reduction power amounts of each facility calculated by the calculation means And a deriving unit that derives a target area for power reduction from a plurality of areas based on the comparison result of the total of the possible reduction power amounts of the included facilities and a predetermined necessary reduction power amount.

  The power management method according to the present invention is a power management method executed by a power management system that manages power supplied to an electrical device, and is a facility that is information indicating features of a plurality of facilities included in each of a plurality of areas. Possible reduction power of each facility calculated in the calculation step, calculation step of calculating possible reduction power amount that can be reduced in each facility based on the acquisition step of acquiring information, and facility information acquired in the acquisition step A derivation step of deriving a target area for power reduction from a plurality of areas based on a comparison result of the sum of the possible reduction power amounts of each facility included in the predetermined area among the quantities and the predetermined necessary reduction power amount; including.

  In the present invention, the possible reduced power amount of each facility is calculated based on the facility information. Then, a target area for power reduction is derived from the sum of the possible reduction power amounts of the facilities included in the predetermined area and the predetermined necessary reduction power amount. As described above, since the target area for power reduction is determined in consideration of the possible reduction power amount of each facility calculated based on the facility information which is information indicating the feature of the facility, the features of the facility included in each area The power reduction target area can be determined in consideration of Therefore, it is possible to set an appropriate area according to the characteristics of the facility as a target area for the power reduction, and to suppress the use of the electrical device from being unnecessarily restricted as the area is expanded more than necessary. it can. In addition, since the target area is derived based on the sum of the possible power reduction amounts of each facility, compared to the case where the target area is determined depending on whether the area includes facilities with high urgency. And fairness between facilities can be secured. That is, it is not excluded from the reduction target just because it is a facility in an area where facilities with high urgency are included, and fairness among facilities is maintained. As described above, according to the present invention, power supply can be controlled in a manner that is highly convenient for the user using the electrical device.

  In the power management system according to the present invention, when the predetermined necessary reduction power amount exceeds the sum of the possible reduction power amounts of the facilities included in the predetermined area in the comparison result, the derivation means determines the predetermined power reduction amount. The area is expanded, and again the sum of the possible reduction power amounts of each facility included in the predetermined area is compared with the predetermined necessary reduction power amount, and the predetermined necessary reduction power amount is included in the predetermined area If it does not exceed the total of the possible reduction power amounts of the respective facilities, the predetermined area may be set as the target area for the power reduction. As a result, the area is sequentially expanded only when the necessary reduction power amount exceeds the possible reduction power amount while comparing the required reduction power amount with the total of the possible reduction power amounts in the predetermined area. By performing such comparison, for example, by expanding the area one by one, it is possible to minimize the target area of the power reduction, and the use of more than necessary electrical devices is limited. The power supply can be controlled in a manner that is highly convenient for the user using the electrical device.

  The power management system according to the present invention may further include distribution means for distributing the information related to the reduction of the power in the power reduction target area, which is derived by the derivation means, into the own system. By distributing the information related to the power reduction, the power supply can be appropriately controlled in the power reduction target area.

  The power management system according to the present invention is provided in a power control terminal for controlling an electric device, installed corresponding to the electric device of each facility, and distributed by facility information stored in the power control terminal, and distribution means The information processing system may further comprise a determination means for determining the power reduction potential of the facility based on the information related to the power reduction. Thus, the possible reduction power amount is determined by the determination means provided in the power control terminal based on the facility information stored in the power control terminal and the information related to the reduction of the power. As described above, since the determination means can determine the possible power reduction amount of each facility using the facility information stored in the power control terminal, the information related to the reduction of the power distributed from the distribution means can be reduced for each facility. It can be set as an aspect which does not include electric energy. As a result, the information related to the power reduction can be made common contents (for example, information such as the required reduced power amount and the power stop time), and batch distribution of the information related to the power reduction becomes possible. This simplifies the distribution of information related to control of power.

  The power management system according to the present invention further includes power stop means provided in the power control terminal for stopping power supply to the electric device in a predetermined case based on the possible reduced power amount determined by the determination means. It is also good. Thus, the power control terminal can reliably stop the power supply according to the possible amount of power reduction.

  In the power management system according to the present invention, the determination means sets the power reduction priority of the electric devices included in each facility based on the category of the electric devices and the power consumption, and the power stop means sets the power reduction priority. Based on the power supply to the electrical device may be turned off to realize the possible reduced power consumption. For example, while priority is given to stopping power supply to electrical devices whose category corresponds to a favorite item, power supply to electrical devices corresponding to daily necessities is not stopped as much as possible, or to electrical devices with large power consumption. By preferentially stopping the power supply or the like, it is possible to maintain the power supply to the electrical devices that are important to the user as much as possible, and to minimize the electrical devices whose power supply is stopped. As a result, the power supply can be controlled in a manner that is more convenient for the user.

  In the power management system according to the present invention, the distribution means distributes the information related to the reduction of the power including the time to stop the power supply, and the determination means stops the supply of the power included in the information related to the reduction of the power The power stop unit may stop the power supply to the electric device for the time indicated by the time for stopping the power supply output to the determination unit. Thus, the time for stopping the power supply can be made appropriate, and the power supply can be controlled in a more convenient manner for the user.

  According to the present invention, it is possible to control the power supply in a manner that is highly convenient for the user who uses the electrical device.

It is a schematic diagram showing composition of an electric power management system concerning this embodiment. It is a figure which shows the hardware constitutions of each node contained in the power management system of this embodiment. It is a block diagram which shows the function of the power management server which concerns on this embodiment. FIG. 4A is a table showing information stored in the weight storage unit of the power management server and the power control terminal according to the present embodiment, FIG. 4A is a weight calculation data table, and FIG. 4B is a power level calculation data It is a table which shows a table, respectively. FIG. 5A is a diagram showing an example of the configuration of the power control terminal according to the present embodiment, FIG. 5A is an example of providing the power control terminal in facility units, and FIG. 5B is an example of providing the power control terminal in electrical equipment units Respectively. It is a block diagram which shows the function of the power control terminal which concerns on this embodiment. It is a table | surface which shows the profile information memorize | stored in the profile information storage part of the power control terminal which concerns on this embodiment. It is a table | surface which shows the priority information memorize | stored in the priority memory | storage part of the power control terminal which concerns on this embodiment. It is a table | surface which shows the apparatus information memorize | stored in the electric equipment. It is a schematic diagram of prior data collection processing concerning this embodiment. It is the schematic of the area mail delivery process which concerns on this embodiment. It is a flowchart which shows the process by the power management server which concerns on this embodiment. It is a flowchart which shows the process by the power control terminal which concerns on this embodiment. It is a sequence diagram which shows a process of the power management system which concerns on this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Where possible, the same parts will be denoted by the same reference symbols, without redundant description.

  FIG. 1 is a schematic view showing a configuration of a power management system according to the present embodiment. The power management system 1 is a system for managing the power supplied to the electrical devices of a plurality of facilities, and more specifically, for example, suppresses the supply of power at the time of implementation of a planned blackout or the like when a natural disaster occurs. It is a system that manages the power supplied to the electric device by determining the area (performing power reduction).

  As illustrated in FIG. 1, the power management system 1 includes a 3G node 10 that is a node related to a 3G (3rd Generation) network, a power management server 21, a CBC (Cell Broadcast Center) 22, and an LTE (Long Term Evolution) network. The LTE node 30 which is a node concerned and the power control terminal 41 are provided.

  The 3G node 10 realizes communication between the power control terminal 41 located in the 3G network, the power management server 21 and the CBC 22. The 3G node 10 is a BTS (Base Transceiver Station) 11 and an RNC (Radio Network Controller). 12, an SGSN (Serving General packet radio service support Node) 13 and a GGSN (Gateway GPRS Support Node) 14 (details will be described later). The BTS 11 is a wireless base station that transmits and receives radio waves to and from the power control terminal 41 in the 3G network. Further, the RNC 12 is a communication control apparatus having a radio access control function, is provided corresponding to the BTS 11, and performs processing related to radio communication of the power control terminal 41 located in the 3G coverage area formed by the BTS 11. Do. Further, the RNC 12 receives the area mail distributed from the CBC 22, and transmits the area mail to the power control terminal 41 via the BTS 11. The SGSN 13 is a device that sets up a session for packet communication and controls packet switching. The GGSN 14 is an apparatus for authenticating a user at the time of packet communication. The SGSN 13 and the GGSN 14 may be provided in the same device.

  Further, the LTE node 30 realizes communication between the power control terminal 41 located in the LTE network, the power management server 21 and the CBC 22, and the eNodeB (evolved Node B) 31, the S-GW (evolved Node B) 31, A Serving Gateway 32 and a P-GW (PDN-Gateway) 33 are provided (details will be described later). The eNodeB 31 is a wireless base station and a communication control apparatus having a wireless access control function. Further, when the power control terminal 41 is located in the LTE network, the eNodeB 31 receives the area mail distributed from the CBC 22 and transmits the area mail to the power control terminal 41. The S-GW 32 is a gateway that relays user data packets. The P-GW 33 is a gateway for connecting to an external network such as the Internet. In the following, assuming that the power control terminal 41 is present in the 3G network, each configuration will be described. The power management system 1 including the power control terminal 41 located in the 3G network, which is a mobile network, is only an example of the power management system, and the power management system is realized using another communication network. It may be.

  FIG. 2 is a diagram showing a hardware configuration of each node included in the positioning system of the present embodiment. That is, the BTS 11, RNC 12, SGSN 13, GGSN 14, power management server 21, CBC 22, eNodeB 31, S-GW 32, P-GW 33 and power control terminal 41 shown in FIG. 1 are physically shown in FIG. 2 respectively. One or more CPUs 111, RAMs 112 and ROMs 113 which are main storage units, input devices 114 such as keyboards and mice which are input devices, output devices 115 such as displays, and communication modules 116 which are data transmitting / receiving devices such as network cards; The computer system is configured as including a secondary storage device 117 such as a semiconductor memory.

  The function of each node is performed by reading one or a plurality of predetermined computer software on hardware such as the CPU 111 and the RAM 112 shown in FIG. 2 so that the input device 114, the output device 115, and the communication module are controlled by the CPU 111. This is realized by operating 116 and reading and writing data in the RAM 112 and the auxiliary storage device 117.

  Returning to FIG. 1, the power management server 21 is a power management device that supplies power to the electric devices 3 installed in each facility 50. The power management server 21 is installed, for example, in a site of a power company. The detailed function of the power management server 21 will be described with reference to FIGS. 3 and 4 as well. FIG. 3 is a block diagram showing functions of the power management apparatus according to the present embodiment. FIG. 4 is a table showing information stored in the weight storage unit of the power management apparatus and the power control terminal according to the present embodiment, and FIG. 4 (a) is a weight calculation data table, and FIG. 4 (b) is a table. It is a table which shows a power level calculation data table, respectively.

  As illustrated in FIG. 3, the power management server 21 includes an acquisition unit 211, a calculation unit 212, a weight storage unit 213, and a derivation unit 214.

  The acquisition unit 211 is an acquisition unit that acquires facility information that is information indicating the features of the plurality of facilities 50 included in each of the plurality of areas. The area is a predetermined area which is determined in advance. The derivation unit 214 determines whether to suppress the supply of power (perform power reduction) in units of the area. The facility 50 is a facility such as a building, and is, for example, a house, a hospital, a school, or the like. The facility information is information indicating the features of the facility 50. For example, a facility type indicating the usage mode of the facility, a user type indicating the user of the facility, a contract indicating the amount of power contracted by the facility The amount of power and the average power consumption of the facility. The facility type is, for example, “emergency” which is the type of facility used at the time of emergency such as a hospital, “public” which is the type of public facility such as a school, or other common facilities such as a house. It is "general" etc. Further, the user type is, for example, a type in the case where the user includes "with an infant" which is a type when an infant is included in the user, or a child (a child who does not correspond to an infant). There are "children" and "general" which is a type when neither infant nor children are included in the user. Moreover, a contract electric energy is "400 A" etc. Further, the average power consumption is an average amount of power used per day, and is, for example, "2 kW / day" or the like.

  The acquisition unit 211 receives profile information (details will be described later) of the facilities 50 corresponding to the respective power control terminals 41 from the respective power control terminals 41 capable of communicating with the power management server 21, thereby obtaining the plurality of facilities 50. Get facility information. The acquiring unit 211 may acquire facility information each time profile information is received, or may acquire facility information at predetermined time intervals. The acquisition unit 211 outputs the acquired facility information to the calculation unit 212.

  The calculation unit 212 is a calculation unit that calculates the possible power reduction amount that can be reduced in power in each facility 50 based on the facility information output by the acquisition unit 211. Further, the calculation unit 212 calculates the possible reduced power amount based on the power level determined according to the required reduced power amount (the power amount required to be reduced). Specifically, the calculation unit 212 calculates the facility information output by the acquisition unit 211, the necessary amount of reduced power input by the operator, and the weight calculation data table hd stored in the weight storage unit 213 (see FIG. 4A). And, based on the power level calculation data table ed (see FIG. 4B) stored in the weight storage unit 213, the possible reduction power amount of the facility 50 is calculated.

  As shown in FIG. 4A, in the weight calculation data table hd, weights corresponding to the facility type, the user type, and the value of the contracted power amount, which are the items included in the facility information, are stored. . That is, for example, “0%” is defined as the facility type “urgent”, “5%” as the “public”, and “10%” as the “general” as weights. In addition, “0%” is defined for the user type “with infant”, “5%” for “with child”, and “10%” for “general” as weights. . In addition, “5%” is defined as the contract power amount “0 to 400A”, “10%” to “400 to 500A”, and “15%” to “500A ̃” as weights. It is done. Furthermore, in the weight calculation data table hd, the weight according to the power level determined based on the necessary amount of reduced power input by the operator is stored. That is, for example, “5%” for power level “level 1”, “10%” for “level 2”, and “20%” for “level 3” are defined as weights. There is.

  As shown in FIG. 4B, in the power level calculation data table ed, power levels corresponding to the required amount of power reduction are stored. For example, if the required power reduction is "100,000 kw", the power level is "level 1", and if the required power reduction is "100,000 to 200,000 kw", the power level is "level 2", , And the power level corresponding to the required power reduction amount is stored.

The calculation unit 212 calculates the possible amount of power reduction based on the following equation (1).
Possible power reduction = average power consumption *
(Power level weight + facility type weight + user type weight + contract power amount weight)
(1)

For example, from the acquiring unit 211, the calculating unit 212 obtains facility information having a facility type of “general”, a user type of “with infants”, a contract energy of “400 A”, and an average power consumption of “2 kW / day”. Suppose you get it. In addition, it is assumed that the calculation unit 212 receives 200,000 kW as a necessary reduction power amount from the operator. In this case, the calculation unit 212 refers to the weight calculation data table hd of the weight storage unit 213, and the facility type weight is "10%", the user type weight is "0%", and the contracted energy weight is "5%" Identify that. Further, the calculation unit 212 refers to the power level calculation data table ed of the weight storage unit 213, and specifies that the power level according to the necessary amount of power reduction is “level 2”, and the weight of the weight storage unit 213 The calculated data table hd is referenced to specify that the power level weight is “10%”. And, based on the above equation (1),
Possible power reduction = 2 kW * (10% + 10% + 0% + 5%) = 500 w
Calculate

  The calculation unit 212 calculates the possible reduction power amount of each facility 50 by calculating the possible reduction power amount of all the facility information acquired from the acquisition unit 211. The calculation unit 212 outputs the calculated possible reduced power amount and the required reduced power amount input from the operator to the derivation unit 214. Further, from the operator, the time when the power supply is partially stopped is input to the calculation unit 212, and the calculation unit 212 outputs the time to the derivation unit 214. Note that while acquisition of facility information by the acquisition unit 211 is performed at predetermined time intervals regardless of whether power supply suppression is performed or not, calculation of the potential reduction power amount by the calculation unit 212 is supply of power. It may be performed only when suppressing.

  Returning to FIG. 3, the derivation unit 214 sums the possible reduction power amounts of the respective facilities 50 included in the predetermined area among the possible reduction power amounts of the respective facilities 50 output by the calculation unit 212 and the predetermined necessity reduction It is a derivation means for deriving a target area for power reduction from a plurality of areas based on the comparison result with the amount of power. The derivation unit 214 sums the possible reduction power amounts of the respective facilities 50 included in the predetermined area by adding up the possible reduction power amounts of all the facilities 50 included in one area randomly selected. To derive.

  For example, when the required reduction power amount does not exceed the total of the possible reduction power amounts of all the facilities 50 included in one randomly selected area, the derivation unit 214 does not exceed (is equal to or less than). In the case where “necessary reduction power amount is smaller” may be described), one randomly selected area is set as a target area to be subjected to the power reduction.

  On the other hand, when the required reduction power amount exceeds, for example, the sum of the possible reduction power amounts of all the facilities 50 included in one randomly selected area (hereinafter, the required reduction power amount In the case where the amount is larger than “in some cases”, the area is expanded, and the required reduction power amount is compared with the possible reduction power amounts of all the facilities 50 included in the area after the enlargement. . To expand the area means, for example, adding one new area. As a result of comparison, when the required reduction power amount is smaller, the (for example, two) areas after the enlargement are set as the target areas for the power reduction. Also, as a result of comparison, if the required reduction power is still larger, the area is further expanded, and the required reduction power and the possible reduction power of all the facilities 50 included in the further expanded area Are compared. In this way, the area is expanded little by little (for example, one by one) until the “necessary power reduction amount is smaller” state, and the required reduction power amount and all facilities 50 included in the area after enlargement are increased. The comparison with the possible reduction amount of power is repeated. The derivation unit 214 partially stops the power supply, information for specifying one or more areas to be power reduction target areas, a required reduction power amount (or a power level according to the required reduction power amount), and Send an area mail delivery request including the time to the CBC 22.

  Returning to FIG. 1, the CBC 22 is a broadcast distribution apparatus that simultaneously distributes area mail of the same content in response to an area mail distribution request from the derivation unit 214, and both the power management server 21 and the power control terminal 41. It is a communication device capable of communication. The area mail is a message broadcasted to a specific area without being affected by the line congestion in an emergency. The CBC 22 has a function as a delivery means for delivering an area mail including information related to the power reduction to the power control terminal 41 of the power reduction target area derived by the derivation unit 214 in the own system. ing. The area mail distributed from the CBC 22 is distributed to the power control terminal 41 via the RNC 12 and the like. The target area for power reduction is specified from the information for specifying one or more areas included in the area mail delivery request from the derivation unit 214. The information related to the reduction of power is information included in the area mail delivery request from the derivation unit 214, including the necessary amount of reduced power and the time for partially stopping the power supply.

  The power control terminal 41 is a terminal installed corresponding to the electric device 3 of each facility 50 for controlling the electric device 3. The detailed function of the power control terminal 41 will be described with reference to FIGS. FIG. 5 is a diagram showing a configuration example of the power control terminal according to the present embodiment, and FIG. 5 (a) shows an example of providing the power control terminal in facility units, and FIG. 5 (b) shows power control in electrical device units. It is a figure which shows the example which provides a terminal, respectively. FIG. 6 is a block diagram showing functions of the power control terminal according to the present embodiment. FIG. 7 is a table showing profile information stored in the profile information storage unit of the power control terminal according to the present embodiment. FIG. 8 is a table showing priority information stored in the priority storage unit of the power control terminal according to the present embodiment. FIG. 9 is a table showing device information stored in the electric device.

  The power control terminal 41 may be one power control terminal 41 x provided in 50 units of facilities as shown in FIG. 5A. The power control terminal 41x is electrically connected to each of the electric devices 3a to 3x in the same facility 50, and is capable of electrically controlling each of the electric devices 3a to 3x. Further, as shown in FIG. 5B, the power control terminal 41 may be a power control terminal 41y provided corresponding to each of the electric devices 3a to 3x in the facility 50. One power control terminal 41y is electrically connected to the electric device 3a, another power control terminal 41y is electrically connected to the electric device 3b, and another power control terminal 41y is an electric device It is electrically connected to 3x. Thereby, the plurality of power control terminals 41y can electrically control the respective electric devices 3a to 3x. Hereinafter, the power control terminal 41 will be described as one power control terminal 41x provided in 50 units of facilities.

  As illustrated in FIG. 6, the power control terminal 41 includes a transmitting unit 411, a profile information storage unit 412, a receiving unit 413, a determining unit 414, a weight storage unit 415, a priority storage unit 416, and power. And a stop unit 417.

  The transmission unit 411 has a function of transmitting profile information of the facility 50 corresponding to the power control terminal 41. More specifically, the transmission unit 411 acquires profile information by referring to the profile information storage unit 412, and transmits the profile information to the power management server 21 at predetermined time intervals.

  As shown in FIG. 7, the profile information pi is information stored in the profile information storage unit 412, and corresponds to the power control terminal name, the facility type, the user type, the average power consumption, and the contracted power consumption. It is the attached information. The power control terminal name is information for uniquely identifying the power control terminal 41, and is indicated by, for example, the numeral "1". The facility type is information indicating the use mode of the facility 50 in which the power control terminal 41 is provided, for example, “emergency”, which is the type of facility used in an emergency such as a hospital, or a public such as a school It is indicated by "public" which is the type of facility, and "general" which is the type of other general facilities such as a house. Further, the user type is information indicating the user of the facility 50 where the power control terminal 41 is provided, for example, “with infant” which is a type when the infant is included in the user Indicated by "with children" which is the type when the child (child who does not fall under the infant) is included in the user, and "general" which is the type when the child is neither included in the user . The average power consumption is an average amount of power that the facility 50 provided with the power control terminal 41 uses on one day, and is indicated by, for example, “2 kW / day” or the like. Further, the contracted power amount is the amount of power contracted by the facility 50 in which the power control terminal 41 is provided, and is indicated by, for example, "400A" or the like. Each information may be acquired automatically from contract information, the use status of power, and device information, or a user of facility 50 or an operator of a power company acquires information manually input. It may be

  Returning to FIG. 6, the receiving unit 413 is a receiving unit that receives the area mail distributed from the CBC 22. The reception unit 413 outputs, to the determination unit 414, the necessary reduction power amount and the time for partially stopping the power supply among the information related to the reduction of the power included in the received area mail.

  The determination unit 414 is a determination unit that determines the possible reduction power amount in the facility 50. More specifically, the determination unit 414 includes the profile information (facility information) stored in the profile information storage unit 412, the necessary power reduction amount included in the information related to the reduction of the power distributed by the CBC 22, and the weight storage unit 415. On the basis of the weight calculation data table hd stored in (see FIG. 4A) and the power level calculation data table ed stored in the weight storage unit 415 (see FIG. 4B). Determine the amount of power reduction. The weight calculation data table hd and the power level calculation data table ed stored in the weight storage unit 415 are the weight calculation data table hd and the power level calculation data table ed stored in the weight storage unit 213 of the power management server 21 described above. It is similar. Therefore, the determination unit 414 can calculate the possible reduction power amount in the facility 50 based on the above-described equation (1), similarly to the calculation unit 212 of the power management server 21 described above.

  Furthermore, the determination unit 414 is the electric device 3 in the facility 50, and reduces the power of the electric device 3 based on the category and the power consumption of the plurality of electric devices 3 electrically connected to the power control terminal 41 ( Power stop) Set the priority. As shown in FIG. 9, the electric device 3 stores device information ai in which the device name, the power consumption, and the category are associated with each other. In the example shown in FIG. 9, the air conditioner (FIG. 9 (a)) stores the device information aiE whose power consumption is “250 W” and the category is “general”, and the refrigerator (FIG. 9 (b)) consumes The device information aiF whose power is "400 W" and whose category is "necessary item" is stored, and the television (FIG. 9C) stores the device information aiT whose power consumption is "255 W" and whose category is "favorable item" doing. In addition, a category shows what kind of aspect the electric equipment 3 is used. Further, as shown in FIG. 8, priority order information ri is stored in the priority order storage unit 416. The priority information ri is information in which the priority, the category, and the power consumption of the electric device 3 are associated with each other. In the example shown in FIG. 8, the priority is set to be high in the order of the preference item, the general item, and the necessities, and the priority is set to be high as the power consumption is large.

  For example, it is assumed that the determination unit 414 acquires device information ai of an air conditioner, a refrigerator, and a television illustrated in FIG. 9 as device information of the electric device 3 in use of power. In this case, the determining unit 414 sets the power reduction priority of the television whose category is the favorite item to the highest by referring to the priority information ri in the priority storage unit 416. Furthermore, the determination unit 414 sets the power reduction priority in the order of the air conditioner whose category is general and the refrigerator whose category is necessity.

  The determination unit 414 outputs, to the power stop unit 417, the power reduction priority order that has been set and the power consumption of each of the electric devices 3 together with the calculated possible power reduction amount and the time for partially stopping the power supply.

  Returning to FIG. 6, the power stop unit 417 is a power stop unit that stops the power supply to the electric device 3 based on the possible reduced power amount determined by the determination unit 414. The power stop unit 417 stops the power supply to the electric device 3 in the descending order of the power reduction priority set by the determination unit 414. At this time, the time when the power supply is stopped is the time when the power supply is partially stopped, which is output by the determination unit 414. When the power supply to the electrical device 3 is stopped, the power stop unit 417 determines whether the total power consumption of the stopped electrical device 3 exceeds the possible reduction power amount in the facility 50. If it exceeds, the process of stopping the power supply to the electric device 3 is finished, and the other electric devices 3 which have not been subjected to the process of stopping the power supply are operated normally. On the other hand, if not exceeded, the power supply to the electric device 3 having the next highest power reduction priority is stopped. Then, it is determined whether the total power consumption of the stopped electric devices 3 exceeds the possible reduced power amount in the facility 50, and if it exceeds, the process of stopping the power supply to the electric devices 3 ends. If not, the power supply to the electric device 3 having the next highest power reduction priority is stopped again. Such processing is repeated until the sum of the power consumption of the stopped electric devices 3 exceeds the possible reduced power amount in the facility 50.

  Next, an image of the prior data collection process in the power management system 1 will be described with reference to FIG. FIG. 10 is a schematic view of prior data collection processing according to the present embodiment.

  As shown in FIG. 10, in the power management system 1, the power management server 21 has jurisdiction over a plurality of facilities 50 (in the example shown in FIG. 10, facilities 50a to 50d are illustrated), and Power is supplied to the device (in the example shown in FIG. 10, the electric devices 3a and 3x are illustrated). Further, the power control terminal 41a corresponds to the facility 50a, the power control terminal 41b corresponds to the facility 50b, the power control terminal 41c corresponds to the facility 50c, and the power control terminal 41d corresponds to the facility 50d. Each is provided.

  The power control terminals 41a to 41d transmit the profile information of the facilities 50a to 50d to the power management server 21 at predetermined time intervals in preparation for implementation of a planned power failure or the like. For example, the power control terminal 41a transmits, to the power management server 21, profile information of the facility type “general”, the user type “with infants”, and the average power consumption “2 kW / day” contracted power amount “400 A”. Be done. The profile information of each facility 50 is similarly transmitted from the other power control terminal 41 to the power management server 21. For example, the power control terminal 41c is a hospital to the power management server 21. Profile information including the facility type “emergency” indicating the facility 50c is transmitted. Further, from the power control terminal 41d, profile information including the facility type “public” indicating the facility 50d which is a school is transmitted to the power management server 21. Thus, the power management server 21 collects profile information from each of the power control terminals 41 corresponding to the facility 50 of the jurisdiction.

  Next, an image of area mail distribution processing in the power management system 1 will be described with reference to FIG. FIG. 11 is a schematic view of area mail delivery processing according to the present embodiment.

  As illustrated in FIG. 11, in the power management system 1, information for specifying a target area to be subjected to power reduction, which is derived in the power management server 21, required power consumption (or power level), and power supply are An area mail delivery request including the time to stop the copy (hereinafter, may be described as “required time”) is sent to the CBC 22. Then, the CBC 22 distributes the area mail to the power control terminals (power control terminals 41a to 41d in the example shown in FIG. 10) provided in the target area for power reduction. The area mail contains the required reduction power amount (or power level). For example, the power control terminal 41a may hold profile information (facility information) held by itself, necessary power reduction, weight calculation data table hd (see FIG. 4A), and power level calculation data table ed (see FIG. b) Calculate the possible amount of power reduction based on the reference). That is, the power control terminal 41a has profile information of the facility type “general”, user type “with infants”, average power consumption “2 kW / day”, and contract information “400 A”, and necessary power reduction of 200,000 kW. Derive the potential reduction power (500 W) based on

  Furthermore, for example, the power control terminal 41a is an electric device 3c whose category is a favorite based on the categories of the electrically connected electric device 3a (air conditioner), the electric device 3b (refrigerator), and the electric device 3c (television). The power reduction priority is set in the order of (TV), the electric device 3 a (air conditioner) whose category is general, and the electric device 3 b (refrigerator) whose category is necessities. Then, the power control terminal 41a stops the power supply to the electric device 3 in the descending order of the power reduction priority. That is, the power control terminal 41a first stops the power supply to the electric device 3c (television), and then stops the power supply to the electric device 3a (air conditioner). At this point, the total power consumption of the stopped electric devices 3c and 3a is 505 W (255 W + 250 W), which exceeds the possible reduced power amount (500 W), so the process for stopping the power supply is completed, and the electric device 3b The (fridge) will operate normally.

  Next, determination processing of the area mail delivery area in the power management server 21 will be described with reference to FIG. FIG. 12 is a flowchart showing processing by the power management server according to the present embodiment.

  As illustrated in FIG. 12, first, the acquisition unit 211 receives the profile information of the facilities 50 transmitted from the power control terminals 41, and acquires the facility information of the facilities 50 (step S11). Subsequently, the calculation unit 212 calculates the power level corresponding to the necessary reduced power amount based on the required reduced power amount input by the operator and the power level calculation data table ed stored in the weight storage unit 213. (Step S12) One area is determined at random (Step S13).

  Then, based on the facility information output by the acquisition unit 211, the power level corresponding to the required amount of power reduction, and the weight calculation data table hd (see FIG. 4A) stored in the weight storage unit 213 by the calculation unit 212. The possible reduction power amount of the facility 50 is calculated (step S14). Subsequently, it is determined by the derivation unit 214 whether the required reduction power amount exceeds the sum of the possible reduction power amounts of all the facilities 50 included in one randomly selected area (step S15). ). If not, the one randomly selected area is set as the target area for power reduction, and the area mail delivery area determination process ends. On the other hand, if it exceeds, the area is expanded by the addition of one more area by the process of S13, and the necessary reduction of electric energy and the possible reduction of all facilities 50 included in the area after the expansion The amount of power is compared. In this way, the area is expanded little by little (for example, one by one) until the “necessary power reduction amount is smaller” state, and the required reduction power amount and all facilities 50 included in the area after enlargement are increased. The comparison with the possible reduction amount of power is repeated.

  Next, the power supply stop process in the power control terminal 41 will be described with reference to FIG. FIG. 13 is a flowchart showing processing by the power control terminal according to the present embodiment.

  As shown in FIG. 13, first, the receiving unit 413 receives the area mail distributed from the CBC 22 (step S21). The area mail includes the required power reduction and the required time. Subsequently, the determination unit 414 stores the profile information (facility information) stored in the profile information storage unit 412, the necessary reduction power amount included in the information related to the reduction of the power distributed by the CBC 22, and the weight storage unit 415. Based on the weight calculation data table hd (see FIG. 4 (a)) and the power level calculation data table ed (see FIG. 4 (b)) stored in the weight storage unit 415, the possible power reduction amount in the facility 50 Is determined (step S22).

  The device information of the electric device 3 in use of power is acquired by the determination unit 414 (step S23). Then, based on the information on the category and power consumption indicated in the device information and the priority information ri stored in the priority storage unit 416 by the determination unit 414, the power reduction priority of the electric device 3 as the stop target device Is set (step S24).

  Subsequently, the power stop unit 417 stops the power supply to the electric device 3 having the highest power reduction priority among the electric devices 3 using power (step S25). Then, the power stopping unit 417 determines whether the sum (total power consumption) of the power consumption of the stopped electric devices 3 exceeds the possible reduced power amount (step S26). When it exceeds, the process of stopping the power supply to the electric device 3 is finished, and the other electric devices 3 which have not been subjected to the process of stopping the power supply operate normally. On the other hand, if not exceeded, the power supply to the electric device 3 having the next highest power reduction priority is stopped. Then, it is determined whether the total power consumption of the stopped electric devices 3 exceeds the possible reduced power amount in the facility 50, and if it exceeds, the process of stopping the power supply to the electric devices 3 ends. If not, the power supply to the electric device 3 having the next highest power reduction priority is stopped again. Such processing is repeated until the sum of the power consumption of the stopped electric devices 3 exceeds the possible reduction power amount in the facility 50.

  Next, processing of the power management system 1 from the collection of prior data to the termination of the power supply to the electrical device will be described using FIG. FIG. 14 is a sequence diagram showing processing of the power management system according to the present embodiment.

  As shown in FIG. 14, first, the electric device 3 in each facility 50 notifies the power control terminal 41 of the device information and the used power (step S101). Subsequently, profile information is generated by the power control terminal 41, and profile information notification for notifying the profile information is transmitted to the power management server 21 (step S102).

  Then, when carrying out a planned blackout, etc., the power management server 21 calculates the possible power reduction amount of each facility, and the target area to be subjected to the power reduction is determined based on the possible power reduction amount (step S103 ). Subsequently, the power management server 21 transmits an area mail delivery request including information for specifying a target area to be subjected to the power reduction, the required power reduction amount, and the required time to the CBC 22 (step S104).

  The CBC 22 distributes the area mail including the required power reduction amount and the required time to the power control terminal 41 of the target area for which power reduction is to be performed (step S105). Then, in the power control terminal 41, the potential reduction power is calculated (step S106), the power reduction priority of the electric device 3 as the stop target device is set (step S107), and the electric device 3 having the highest power reduction priority is The power supply is stopped sequentially from step S108 (step S108).

  Next, the operation and effect of the power management system 1 according to the present embodiment will be described.

  In the power management system 1 according to the present embodiment, the possible reduced power amount of each facility 50 is calculated based on the facility information. Then, a target area for power reduction is derived from the sum of the possible power reduction amounts of the facilities 50 included in the predetermined area and the predetermined necessary power reduction amount. As described above, the power reduction target area is determined in consideration of the possible power reduction amount of each facility 50 calculated based on the facility information which is information indicating the feature of the facility 50, and thus is included in each area The target area of the power reduction can be determined in consideration of the characteristics of the facility 50. Therefore, an appropriate area according to the characteristics of the facility 50 can be set as the target area for power reduction, and the use of the electric device 3 is restricted more than necessary as the area is expanded more than necessary. Can be suppressed. In addition, since the target area is derived based on the sum of the possible power reduction amounts of each facility, compared to the case where the target area is determined depending on whether the area includes facilities with high urgency. And fairness between facilities can be secured. That is, it is not excluded from the reduction target just because it is a facility in an area where facilities with high urgency are included, and fairness among facilities is maintained. As described above, according to the present invention, power supply can be controlled in a manner that is highly convenient for the user using the electrical device.

  Further, in the power management system 1 according to the present embodiment, in the comparison result, the derivation unit 214 determines that the predetermined necessary reduction power amount exceeds the total of the possible reduction power amounts of the respective facilities 50 included in the predetermined area. If it is, the predetermined area is expanded, and again, the sum of the possible reduction power amounts of the facilities included in the predetermined area is compared with the predetermined necessary reduction power amount, and the predetermined necessary reduction power amount is If it does not exceed the total of the possible reduction power amounts of the facilities included in the predetermined area, the predetermined area is set as the target area for the power reduction. As a result, the area is sequentially expanded only when the necessary reduction power amount exceeds the possible reduction power amount while comparing the required reduction power amount with the total of the possible reduction power amounts in the predetermined area. By performing such comparison, for example, by expanding the area one by one, the target area of the power reduction can be minimized, and the use of the electric device 3 more than necessary is limited. Power supply can be controlled in a manner that is highly convenient for the user using the electric device 3.

  Further, the power management system 1 according to the present embodiment further includes a CBC 22 that distributes the information related to the power reduction in the power reduction target area, which is derived by the derivation unit 214, into the own system. By distributing the information related to the power reduction, the power supply can be appropriately controlled in the power reduction target area.

  Further, in the power management system 1 according to the present embodiment, the facility information indicates the facility type indicating the usage mode of the facility, the user type indicating the user of the facility, and the amount of power contracted by the facility. It includes the contracted power and the average power consumption of the facility. By making these pieces of information into facility information, it is possible to make the facility information appropriately reflect the features of the facility.

  Further, in the power management system 1 according to the present embodiment, the calculation unit 212 calculates the possible reduced power amount based on the power level determined according to the required reduced power amount. By calculating the possible reduction power amount in consideration of the power level determined according to the required reduction power amount, the possible reduction power amount can be made to correspond to the required power reduction degree.

  In addition, the power management system 1 according to the present embodiment is provided in the power control terminal 41 for controlling the electric device 3 installed corresponding to the electric device 3 of each facility 50, and stored in the power control terminal 41. The CBC 22 further includes a determination unit 414 that determines the possible reduction power amount of the facility 50 based on the profile information and the information related to the reduction of the power distributed by the CBC 22, and the CBC 22 performs power management to supply power to the electrical device 3. This is a communication device capable of communicating with both the server 21 and the power control terminal 41. As a result, information related to power reduction is distributed from the CBC 22, and it is possible based on the profile information stored in the power control terminal 41 and the information related to power reduction by the determination unit 414 provided in the power control terminal 41. The amount of power reduction is determined. As described above, since the determination unit 414 can determine the possible power reduction amount of each facility 50 using the profile information stored in the power control terminal 41, the facility 50 can use the information related to the reduction of the power distributed from the CBC 22. It is possible to adopt an aspect that does not include each possible reduced power amount. As a result, the information related to the power reduction can be made common contents (for example, information such as the required reduced power amount and the power stop time), and batch distribution of the information related to the power reduction becomes possible. This simplifies the distribution of information related to control of power.

  In addition, the power management system 1 according to the present embodiment stops the power supply to the electric device 3 based on the possible reduced power amount determined by the determination unit 414, and is a power stop unit 417 provided in the power control terminal 41. Further comprising As a result, the power control terminal 41 can reliably stop the supply of power according to the possible amount of power reduction.

  Further, in the power management system 1 according to the present embodiment, the determination unit 414 sets the power reduction priority of the electrical devices 3 included in each facility 50 based on the category of the electrical devices 3 and the power consumption, and stops the power The part 417 stops the power supply to the electric device 3 so as to realize the possible reduced power amount based on the power reduction priority. For example, while the power supply to the electric device 3 whose category corresponds to the favorite product is preferentially stopped, the power supply to the electric device 3 corresponding to the daily necessities is not stopped as much as possible, or the electric device with large power consumption By preferentially stopping the power supply to 3, etc., the power supply to the electrical device 3 important to the user can be maintained as much as possible, and the electrical device 3 for which the power supply is stopped can be minimized. . As a result, the power supply can be controlled in a manner that is more convenient for the user.

  Further, in the power management system 1 according to the present embodiment, the power stop unit 417 provided in the power control terminal 41 stops the power supply to the electric device 3 based on the possible reduced power amount determined by the determination unit 414. The CBC 22 distributes information related to power reduction including the time to stop power supply, and the determination unit 414 shuts off the time to stop power supply included in the information related to power reduction. The output to the unit 417 is performed, and the power stop unit 417 stops the power supply to the electric device 3 for the time indicated by the time for stopping the power supply output to the determination unit 414. As a result, the time for stopping the power supply can be made appropriate (the minimum necessary time), and the power supply can be controlled in a more convenient manner for the user.

  Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments. That is, although an example in which the power management server 21 and the CBC 22 are separate devices has been described, these functions may be realized by one device.

  In addition, as the facility information, the facility type indicating the usage mode of the facility, the user type indicating the user of the facility, the contracted power amount indicating the amount of power contracted by the facility, and the average power consumption of the facility However, the facility information may be information including at least one of these. The facility information may include only information that does not correspond to any of the above-described information as long as the facility information includes information indicating the feature of the facility.

  Moreover, when deriving the handling area of the power reduction, although the example of expanding the area one by one has been described, the present invention is not limited to this, and two or more areas may be added.

  Moreover, although the example in which the determination part 414 was provided in the power control terminal 41 was demonstrated, it is not limited to this, A determination part may be provided in the power management server. Also, although it has been described that area mail is simultaneously distributed from CBC 22 to a plurality of power control terminals 41, the present invention is not limited to this, and information related to power reduction is individually distributed from CBC to each power control terminal It may be

DESCRIPTION OF SYMBOLS 1 ... Power management system, 3 ... Electric apparatus, 21 ... Power management server, 41 ... Power control terminal, 50 ... Facility, 211 ... Acquisition part, 212 ... Calculation part, 214 ... Derivation part, 414 ... Determination part, 417 ... Power Stop part.

Claims (7)

A power management system for managing power supplied to an electrical device, comprising:
Information indicating characteristics of a plurality of facilities included in each of a plurality of areas, indicating a facility type indicating a usage mode of the facility, a user type indicating a user of the facility, and an amount of power contracted by the facility Acquisition means for acquiring facility information including all of the contracted power amount and the average power consumption of the facility;
Calculation means for calculating a possible power reduction amount capable of reducing power at each facility based on the facility information acquired by the acquisition means;
Among the possible reduction power amounts of each facility calculated by the calculation means, the plurality of the plurality based on the comparison result of the sum of the possible reduction power amounts of each facility included in the predetermined area and the predetermined necessary reduction power amount Deriving means for deriving a power reduction target area from the area;
In addition to the information related to power reduction in the power reduction target area derived by the derivation means, the area mail to be simultaneously distributed to a specific area without being affected by the line congestion in an emergency within the own system Means of delivery to
Power management system comprising: The derivation means is
In the comparison result, when the predetermined necessary reduction power amount exceeds the total of the possible reduction power amounts of the respective facilities included in the predetermined area, the predetermined area is enlarged, and again Compare the sum of the possible reduction power amounts of each facility included in the predetermined area with the predetermined required reduction power amount,
When the predetermined necessary reduction power amount does not exceed the total of the possible reduction power amounts of the facilities included in the predetermined area, the predetermined area is set as a target area for the power reduction. The power management system according to 1).   To reduce the facility information stored in the power control terminal and installed in the power control terminal for controlling the electrical device installed corresponding to the electrical devices of each facility, and the power distributed by the distribution means The power management system according to claim 1 or 2, further comprising a determination unit that determines the possible reduction power amount of the facility based on the information.   The power management according to claim 3, further comprising: power stop means provided in the power control terminal for stopping power supply to an electric device in a predetermined case based on the possible reduction power amount determined by the determination means. system. The determining means sets a power reduction priority of the electrical devices included in each facility based on the category of the electrical devices and the power consumption.
The power management system according to claim 4, wherein the power stopping unit stops the power supply to the electric device so as to realize the possible reduced power amount based on the power reduction priority. The distribution means distributes information related to the reduction of the power including the time of stopping the power supply,
The determination means outputs a time for stopping the power supply included in the information related to the reduction of the power to the power stop means.
The power management system according to claim 4 or 5, wherein the power stopping unit stops the power supply to the electric device for the time indicated by the time to stop the power supply output to the determining unit. A power management method executed by a power management system for managing power supplied to an electrical device, comprising:
Information indicating characteristics of a plurality of facilities included in each of a plurality of areas, indicating a facility type indicating a usage mode of the facility, a user type indicating a user of the facility, and an amount of power contracted by the facility Obtaining facility information including all of the contracted power amount and the average power consumption of the facility;
A calculation step of calculating a possible power reduction amount capable of reducing power in each facility based on the facility information acquired in the acquisition step;
Among the possible reduction power amounts of each facility calculated in the calculation step, based on the comparison result of the sum of the possible reduction power amounts of each facility included in the predetermined area, and the predetermined necessary reduction power amount, A derivation step of deriving a target area for power reduction from the area;
In addition to the information related to power reduction in the power reduction target area derived in the derivation step, the area mail to be simultaneously distributed to a specific area without being affected by the line congestion in an emergency within the own system Delivery step to deliver to
Power management methods including:

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