JP2015042071A - Power distribution system facility evaluation device and power distribution system facility evaluation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a power distribution system facility evaluation device and power distribution system facility evaluation method capable of accurately evaluating a power distribution system.SOLUTION: A power distribution system facility evaluation device for evaluating a power distribution system comprises a processor for: searching for an evaluation target facility from a plurality of facilities installed in the power distribution system; identifying an outage initial range immediately after outage and an after-switch switching outage range after switching a switch on the assumption that the outage is caused by a failure of an evaluation target facility obtained as a result of the search, and identifying a user included in the identified outage initial range and a user included in the after-switch switching outage range; calculating assumed outage time for each identified user; calculating, for each user, an electric charge which would be obtained on the assumption that the outage did not occur by multiplying the calculated assumed outage time for each user by a power consumption amount per unit time and a unit price of the electric charge; and calculating a loss amount caused by the outage of a loss amount by adding up the calculated charges of respective users.

Description

  The present invention relates to a distribution system facility evaluation apparatus and a distribution system facility evaluation method, and particularly suitable for application to a distribution system facility evaluation apparatus and a distribution system facility evaluation method for evaluating a distribution system by calculating a loss amount for each facility. It is.

  Conventionally, the average power outage duration (minutes / doors) or the average number of power outages (times / doors) is used as an evaluation index for evaluating the distribution system. The average power outage duration is an average value of power outage time experienced by one customer throughout the year. The average number of blackouts is the average number of blackouts experienced by one customer throughout the year. This evaluation index is calculated based on, for example, statistical data on past power outages. In the case of capital investment, new installation or expansion of the equipment will be considered so that this evaluation index is below a certain value.

  Patent Document 1 discloses a distribution system evaluation device that calculates an electricity charge from a consumer who would have been obtained if there was no power outage due to an accident as a loss amount of an electric power company, and evaluates the distribution system in terms of cost. ing. In addition, when evaluating including the cost of changing the distribution system, it is possible to calculate the construction cost caused by the change of the distribution system, and evaluate the distribution system by adding the calculated construction cost to the above-mentioned loss amount. It is disclosed.

  That is, Patent Document 1 includes the amount of loss in the event of a power failure and the construction cost required when the distribution system is changed (new installation, removal, route change) to restore the power failure. In total, the cost of the entire power distribution system required when a power outage occurs once can be obtained as an evaluation result. And by obtaining an evaluation result assuming this change of the distribution system, it is said that the capital investment for the distribution system can be efficiently examined.

Japanese Patent No. 4597068

  However, the evaluation result by the distribution system evaluation device described in Patent Document 1 is maintained in the same configuration as that of the distribution system immediately after the power failure after the power failure occurs until the power is completely restored. As long as it is effective, for example, if the equipment in the distribution system is temporarily changed between the occurrence of a power failure and the complete restoration, the direction of the current flowing in the distribution system is changed, and the evaluation result The value of will decline.

  For example, even if the number of customers who lost power in the distribution system immediately after the occurrence of a power outage is 1000, 500 customers have changed due to the temporary change of the equipment in the distribution system and the change in current direction. If power is to be supplied, only 500 customers are still out of service. In this case, as described in Patent Document 1, if the power distribution system is evaluated as having 1000 power outages throughout the entire period from the occurrence of a power failure until full recovery, the accuracy of the evaluation result is reduced and the value is reduced. .

  In practice, the direction of the current flowing through the power distribution system changes depending on the open / close state of the switches placed in the distribution system. The open / close state of the switch depends on the occurrence of an accident, expansion of equipment, connection of new customers, etc. Etc. are reviewed and changed every day in the distribution system. Therefore, the distribution system evaluation device described in Patent Document 1 cannot obtain a highly accurate evaluation result.

  In addition, the distribution system evaluation device described in Patent Document 1 merely evaluates the entire distribution system, and based on the evaluation result, which equipment in the distribution system is reinforced, or in which region is new. The decision of whether or not to add equipment is left to the knowledge and experience of engineers. In other words, it is not possible to obtain an effective evaluation result as to how to specifically change the equipment in the distribution system in order to reduce the amount of loss during capital investment. Therefore, the distribution system evaluation device described in Patent Document 1 cannot obtain a detailed evaluation result.

  The present invention has been made in consideration of the above points, and proposes a distribution system facility evaluation apparatus and a distribution system facility evaluation method capable of evaluating a distribution system with high definition.

  In order to solve such a problem, the distribution system facility evaluation apparatus according to the present invention calculates the amount of loss when a power failure occurs due to a failure of any of a plurality of facilities installed in the distribution system. A distribution system equipment evaluation device that evaluates a distribution system by using an input unit for inputting loss calculation conditions, a storage unit for storing programs and data necessary for calculating the loss amount, and displaying the loss amount And a processor for calculating the amount of loss based on calculation conditions, programs and data, and the processor searches for and evaluates the facility to be evaluated from among a plurality of facilities installed in the power distribution system. In addition to identifying the initial power outage range immediately after a power failure and the power failure range after switch switching after switch switching, assuming that a power failure has occurred due to the failure of the equipment to be evaluated obtained as a result Identify the customers included in the identified initial power outage range and the customers included in the power outage range after switching the switch, calculate the expected power outage time for each specified customer, and unit the estimated power outage time for each calculated consumer By multiplying the amount of electricity used per hour and the unit price of the electricity charge, the electricity charge that would have been obtained if no power failure occurred was calculated for each consumer, and the calculated electricity charge for each consumer was added up The amount of loss due to a power failure is calculated out of the amount of loss.

  In order to solve such a problem, the distribution system facility evaluation method according to the present invention calculates the amount of loss when a power failure occurs due to a failure of any of a plurality of facilities installed in the distribution system. A distribution system facility evaluation method for a distribution system facility evaluation apparatus for evaluating a distribution system, wherein a processor of the distribution system facility evaluation apparatus searches for a facility to be evaluated from a plurality of facilities installed in the distribution system. Identifying the initial power outage range immediately after a power failure and the power failure range after switch switching after switch switching when assuming that a power failure has occurred due to failure of the evaluation target equipment obtained as a result of step 1 and the search result The second step of identifying the customers included in the specified power outage initial range and the customers included in the power outage range after switching the switch, and calculating the estimated power outage time for each specified consumer The third step and the calculated estimated power outage time for each consumer are multiplied by the amount of power used per unit time and the unit price of the electricity charge, and the electricity charge that would have been obtained if a power outage did not occur And a fourth step of calculating the amount of loss due to a power out of the amount of loss by adding the calculated electricity charges for each consumer.

  According to the present invention, the power distribution system can be evaluated with high definition.

It is a whole lineblock diagram of a distribution system equipment evaluation system. It is a physical block diagram of a power distribution system equipment evaluation apparatus. It is a functional block diagram of a power distribution system equipment evaluation apparatus. It is a conceptual diagram of distribution system information. It is a conceptual diagram of distribution system information. It is a logic block diagram of equipment connection information. It is a logic block diagram of distribution facility information. It is a logic block diagram of maintenance work history information. It is a logic block diagram of a power failure history information. It is a logic block diagram of switch switching history information. It is a logic block diagram of equipment new design picture information. It is a logic block diagram of used electric energy historical information. It is a logic block diagram of consumer personal information. It is a screen block diagram of an evaluation result display screen. It is a flowchart of a power distribution system equipment evaluation process. It is a flowchart of a power failure initial range specific process. It is a flowchart of the power failure range specific process after switch switching.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(1) Overall Configuration FIG. 1 shows an overall configuration of a distribution system facility evaluation system 100. The distribution system facility evaluation system 100 includes a data center 10, a power plant 20, a distribution system 30, and a plurality of customers 40. Although the data center 10 here is illustrated as an independent facility, the present invention is not necessarily limited to this, and may be provided in the power plant 20, for example.

  The data center 10 includes the power distribution system facility evaluation apparatus 1 according to the present embodiment. The distribution system facility evaluation apparatus 1 evaluates the distribution system 30 for each facility. Evaluation for each facility means that when a plurality of facilities installed in the power distribution system 30 are selected as evaluation targets, the amount of loss when each of the selected facilities is assumed to have failed is calculated. This means that the distribution system 30 is evaluated angularly.

  The power plant 20 includes a power generation device (not shown), and supplies power obtained by power generation to the distribution system 30. The power plant 20 collects and manages various types of information related to the power distribution system 30, and transmits information necessary for evaluation of the power distribution system 30 among the various pieces of information collected and managed to the data center 10.

The power distribution system 30 is an evaluation range evaluated by the power distribution system facility evaluation apparatus 1 in the present embodiment, and includes a plurality of facilities. Examples of the plurality of facilities installed in the power distribution system 30 include a substation, feeder, utility pole, electric wire, and switch. The power distribution system 30 distributes the electric power supplied from the power plant 20 by a plurality of facilities and finally supplies it to the customer 40.
The consumer 40 is an end user who finally receives power supply and uses the power.

(2) Configuration of Distribution System Facility Evaluation Device (2-1) Physical Configuration FIG. 2 shows a physical configuration of the distribution system facility evaluation device 1. The distribution system facility evaluation apparatus 1 includes a CPU (Central Processing Unit) 11, a main memory 12, a storage device 13, a network interface 14, an input unit 15, and a display unit 16. The CPU 11, the main memory 12, the storage device 13, the network interface 14, the input unit 15, and the display unit 16 are connected to be communicable with each other via an internal bus B1.

  The CPU 11 is a processor that comprehensively controls the operation of the power distribution system facility evaluation apparatus 1. The main memory 12 is a work memory that stores various programs and various data read by the CPU 11. The storage device 13 is, for example, a hard disk, and stores a program 131 and data 132 that are expanded in the main memory 12.

  The network interface 14 is an interface for connecting the distribution system facility evaluation apparatus 1 and an external system (for example, the power plant 20), and includes a serial port conforming to a predetermined communication standard. The input unit 15 includes a keyboard 1511 and a mouse 1512 that accept input of various data. The display unit 16 includes a display 1611 such as an LCD (Liquid Crystal Display).

(2-2) Functional Configuration FIG. 3 shows a functional configuration of the distribution system facility evaluation apparatus 1. When the calculation condition 151 is input in the input unit 15, the distribution system facility evaluation apparatus 1 calculates the evaluation result 161 that satisfies the input calculation condition 151 by referring to the program 131 and the data 132, and the calculated evaluation result 161 is displayed on the display unit 16.

  Specifically, the calculation conditions 151 input in the input unit 15 include conditions relating to “target equipment”, “calculation type”, “unit time”, “switch pattern”, and “switch pattern weighting”. Details of these calculation conditions 151 will be described later (FIG. 13). For example, when “electric wire” is input as “target equipment” in the calculation conditions 151, among the plurality of equipment constituting the power distribution system 30. All “electric wires” are set as evaluation targets. In this case, the amount of loss when a power failure occurs due to a failure (disconnection) of each “electric wire” is calculated for each ID that individually identifies the electric wire.

  A program 131 for obtaining an evaluation result 161 that satisfies the calculation condition 151 includes an overall control unit 1311, a target facility search unit 1312, a power failure initial range specifying unit 1313, a switchover power failure range specifying unit 1314, and a communication failure range specifying unit 1315. , A power failure time estimation unit 1316, an average loss amount calculation unit 1317, an accident countermeasure cost calculation unit 1318, an area characteristic calculation unit 1319, and an equipment average failure frequency calculation unit 13191.

  The overall control unit 1311 is a program for comprehensively controlling the operations of the various programs 1312 to 13191, and is generally called a scheduler or a kernel. The target facility search unit 1312 is evaluated from among a plurality of facilities installed in the distribution system 30 based on the condition regarding the target facility among the calculation conditions 151 input in the input unit 15 and the distribution facility information 1323. Search for target equipment (equipment to be evaluated).

  The power failure initial range specifying unit 1313 refers to the facility connection information 1322 and searches for a downstream facility that is electrically downstream from the evaluation target facility to specify the power failure initial range. The power failure range specifying unit 1314 after switching the switch refers to the power distribution system information 1321 and specifies a power failure range that is a power failure section to which the evaluation target equipment belongs and is divided by the switch.

  The communication failure range identification unit 1315 refers to the facility connection information 1322 and identifies a customer facility where a communication failure occurs when the evaluation target facility fails. An example of the customer facility is a home gateway owned by the customer.

  The home gateway is a device that sequentially receives information on electricity charges from the smart meter through communication and displays the information on a display or the like. The smart meter is a device that collects the amount of power used by consumers at regular intervals, calculates an electricity bill, and transmits the calculated electricity bill to the home gateway by communication.

  The power failure time estimation unit 1316 refers to the power failure history information 1325, and refers to the average time (average switching time) from the occurrence of a power failure until the switch switching is completed, and the power failure after the switch switching is completed. The average time until the complete recovery (average recovery time) is calculated.

  The average loss amount calculation unit 1317 refers to the power failure time of the customer or customer facility calculated by the power failure time estimation unit 1316 and the customer information 1328, and calculates a loss amount for each customer or customer facility. Then, the amount of loss on the enterprise side is calculated by adding these together. The accident countermeasure cost calculation unit 1318 refers to the maintenance work history information 1324 and calculates an average accident countermeasure cost when the evaluation target equipment is out of order.

  The regional characteristic calculation unit 1319 refers to the maintenance work history information 1324 and the map information 1329, and calculates a facility failure rate based on geographical characteristics. The facility average failure frequency calculation unit 13191 calculates the average failure frequency for each facility type in the unit time based on the maintenance work history information 1324 and the condition related to the unit time in the calculation condition 151.

  Data 132 includes distribution system information 1321, facility connection information 1322, distribution facility information 1323, maintenance work history information 1324, power failure history information 1325, switch switching history information 1326, facility new design information 1327, customer information 1328, and map information. 1329. Details of these various types of information 1321 to 1328 will be described later (FIGS. 4 to 12).

  The map information 1329 is, for example, information related to the topography similar to the map information used in car navigation, and includes, for example, information on the altitudes of traffic networks, buildings, seas, mountains, and rivers on the map. It is. The map information 1329 is used when mapping the evaluation result on the map. The map information 1329 itself is obtained by purchasing from a trader handling map information and stored in the data 132.

(3) Details of Various Information FIGS. 4A and 4B show a conceptual configuration of the distribution system information 1321. The distribution system information 1321 is information indicating a connection configuration of a plurality of facilities installed in the distribution system 30. FIG. 4A shows an electrical connection configuration and a control connection configuration, and FIG. 4B shows a physical connection configuration of the region 13211 in FIG. 4A. In FIG. 4A, the electrical connection configuration is indicated by a solid line arrow, and the control connection configuration is indicated by a one-dot chain line arrow. In FIG. 4B, the physical connection configuration is indicated by a two-dot chain line.

  Therefore, in the case of FIG. 4A, for example, the switch 301 is electrically connected to the utility pole 302, and the electrical connection configuration is illustrated in which the switch 301 is upstream and the utility pole 302 is downstream in terms of current flow. . In addition, a transformer 3021 and a μDMS (Distribution Management System) 3022 are installed on the power pole 302 and are electrically connected to each other. The electrical connection is such that the upstream is the transformer 3021 and the downstream is the μDMS 3022 in terms of current flow. The configuration is shown.

  Further, the μDMS 3022 is connected to each of the DMS 303, the customer facility 304 (for example, HGW: Home Gate Way), and the customer facility 3091 so that they can communicate with each other. When the control signal from the DMS 303 is received, the μDMS 3022 is based on the received control signal. A control connection configuration for transmitting various types of information to the customer facilities 304 and 3091 is shown.

  In the case of FIG. 4B, a support tool A and a support tool B are attached to the utility pole 302, and a physical connection relationship in which the transformer 3021 is supported by the support tool A and the μDMS 3022 is supported by the support tool B is shown. ing.

  FIG. 5 shows a logical configuration of the facility connection information 1322. The facility connection information 1322 includes a connection type column 13221, an upstream facility ID column 13222, and a downstream facility ID column 13223. The connection type column 13221 stores the connection type. The upstream facility ID column 13222 stores the ID of the facility connected upstream in relation to the downstream facility ID column 13223. The downstream facility ID column 13223 stores the ID of the facility connected downstream in relation to the upstream facility ID column 13223.

  Therefore, in the case of FIG. 5, for example, the equipment with the upstream equipment ID “1899721” (for example, a utility pole) and the equipment with the downstream equipment ID “1454134” (for example, a transformer) are physical because the equipment type is “physical”. It is shown that they are in a connected relationship (a transformer is fixed on a utility pole).

  FIG. 6 shows a logical configuration of the distribution facility information 1323. The power distribution facility information 1323 includes a facility ID column 13231, a facility type column 13232, an installation location column 13233, an installation date column 13234, an owner column 13235, and a customer ID column 13236.

  The facility ID column 13231 stores the ID of the facility installed in the power distribution system 30. The equipment type column 13232 stores the type of equipment installed in the power distribution system 30. The installation location column 13233 stores the latitude and longitude of the equipment installed in the power distribution system 30.

  The installation date column 13234 stores the date on which equipment is installed in the power distribution system 30. The owner column 13235 stores information on the owner of the equipment installed in the power distribution system 30. The customer ID column 13236 stores an ID for identifying a customer when the owner of the equipment installed in the power distribution system 30 is a customer.

  Therefore, in the case of FIG. 6, among the facilities installed in the power distribution system 30, the facility type with the facility ID “842163” is “transformer”, the latitude of this facility is “35.586632”, and the longitude Is installed at a location of “139.7655”. The installation date of the “transformer” is “2010/2/12”, and the owner is “electric power company”.

  FIG. 7 shows a logical configuration of the maintenance work history information 1324. Maintenance work history information 1324 includes an equipment ID column 13241, an equipment type column 13242, an accident occurrence date / time column 13243, an accident recovery date / time column 13244, a failure type column 13245, a failure cause column 13246, a correspondence content column 13247, an operation start date / time column 13248, It is composed of a work end date / time column 13249, a used consumables column 132491, and a work person in charge column 132492.

  The equipment ID column 13241 stores the ID of equipment installed in the power distribution system 30. The equipment type column 13242 stores the type of equipment installed in the power distribution system 30. The accident occurrence date and time column 13243 stores the date and time when the accident occurred. The accident recovery date and time column 13244 stores the date and time when the accident was recovered.

  The failure type column 13245 stores the failure type. The failure cause column 13246 stores the cause of failure. The correspondence contents column 13247 stores the contents of the work for the failure. The work start date and time column 13248 stores the date and time when the work for the failure was started. The work end date and time column 13249 stores the date and time when the work for the failure is completed.

  The used consumables column 132491 stores the consumables used for the work corresponding to the failure and the number of parts of the consumables. The work person in charge column 132492 stores information on the work person in charge.

  Accordingly, in the case of FIG. 7, among the facilities installed in the distribution system 30 to be evaluated, the accident occurrence date and time of the facility whose facility ID is “15971264” and whose facility type is “switch” is “2011/10 / 28 20:10 ”and the accident recovery date is“ 2011/11/2 9:25 ”. In addition, it is indicated that the failure type of this equipment is “unstable operation”, the cause of failure is “wear and tear”, and the content of the corresponding work is “part replacement”.

  Further, the work start date and time of this “part replacement” work is “2011/11/2 9:00”, and the work end date and time is “2011/11/2 9:22”. Also, it is shown that the number of consumables and parts used in the parts replacement operation is “1” for “switch” and “3” for “8 mm screw”. Is shown.

  FIG. 8 shows a logical configuration of the power failure history information 1325. The power failure history information 1325 includes a power failure number column 13251, a power failure occurrence date and time column 13252, a power failure unit number column 13253, a switch switching date and time column 13254, a post-switching power failure unit number column 13255, a power failure complete recovery date and time column 13256, a power failure cause column 13257, and a cause facility It consists of a column 13258.

  The power failure number column 13251 stores a number for identifying a power failure. The date and time when the power failure occurred is stored in the power failure occurrence date and time column 13252. The number of households of customers who have a power outage is stored in the number of power outages column 13253. In the switch switching date and time column 13254, the date and time when the switch is switched after a power failure occurs is stored.

  Stored in the post-switching power outage number column 13255 stores the number of homes of the customer who still has a power outage after switching the switch. The date and time when the power failure is completely recovered is stored in the power failure complete recovery date and time column 13256. In addition, the day when the power failure is completely restored here means the day when the equipment that caused the power failure (failed equipment) was repaired or replaced, and the opening and closing of the switch was returned to the state before the failure. To do. The cause of power failure is stored in the power failure cause column 13257. The cause facility column 13258 stores the facility that caused the power failure.

  Therefore, in the case of FIG. 8, the power outage identified by the power outage number “123” occurs at “2012/4/22 12:06”, and the number of customers who have a power outage at that time is “24561” units. It is shown. The date and time when the switch was switched after a power failure occurred was “2012/4/22 12:10”, and the number of customers who had a power outage after switching the switch was “1749”. It is shown.

  The date and time when the power failure was completely restored is “2012/4/22 12:36”, the cause of this power failure is “accident”, and the equipment that caused the power failure is “wire”. ing.

  FIG. 9 shows a logical configuration of the switch switching history information 1326. The switch switching history information 1326 includes an event ID column 13261, an event date / time column 13262, an event classification column 13263, a switch number column 13264, and an open / close state column 13265.

  The event ID column 13261 stores an ID for identifying an event that the switching of the switch has been switched in the past or an event that the switching of the switch of the future is switched. The event date / time column 13262 stores the date / time of an event that occurred in the past or the date / time of an event that is scheduled to occur in the future.

  The event classification column 13263 stores event classifications. The switch number column 13264 stores the number of the switch that has been switched in the past event or the switch that is scheduled to be switched in the future event. The open / close state column 13265 stores the open / close state of the switch.

  Therefore, in the case of FIG. 9, the occurrence date and time of the event having the event ID “000167” is “2000/1/1 0:00”, and the event classification is “accident response”. In addition, the numbers of the switches that have been switched according to this event are “003468” and “003218”, indicating that both switches have been switched to the “open” state. In addition, since the occurrence date and time of the event with the event ID “006000” is “2013/3/31 23:59” and the event classification is “equipment expansion (planned)”, this event is scheduled in the future. Shown to be an event.

  FIG. 10 shows a logical configuration of the equipment new design image information 1327. The new equipment design image information 1327 includes an equipment ID column 13271, an effective date column 13272, an equipment type column 13273, and a planned installation location column 13274.

  The facility ID column 13271 stores an ID for identifying a facility to be newly installed (added) in the distribution system 30 to be evaluated. The effective date column 13272 stores the date when the facility to be expanded is connected to another facility and becomes effective (operating state). The equipment type column 13273 stores the equipment type to be added. The planned installation location column 13274 stores the installation location of the facility to be expanded.

  Accordingly, in the case of FIG. 10, it is planned to add a facility whose equipment ID is “P012435”, and the effective date after the equipment to be added is actually added is “2013/4/1”. It is shown. In addition, it is shown that the facility type scheduled to be added is “electric pole”, and is planned to be installed at a location where the latitude is “35.658602” and the longitude is “139.7455”.

  FIG. 11 shows a logical configuration of the power consumption history information 1328A in the customer information 1328. The power consumption history information 1328A includes a customer ID column 13281A, a usage date column 13282A, and a power consumption column 13283A.

  The customer ID column 13281A stores an ID for identifying the customer. The usage date column 13282A stores the year and month when the consumer used electricity. The amount of power used by the consumer is stored in the amount of power used column 13283A.

  Therefore, in the case of FIG. 11, it is shown that the amount of power used by the customer with the customer ID “1000457” for “2012/4” is “154.6” kwh.

  FIG. 12 shows a logical configuration of customer personal information 1328B in customer information 1328. The customer personal information 1328B includes a customer ID column 13281B, a contract type column 13282B, a contractor name column 13283B, an address column 13284B, a date of birth column 13285B, and a drawing facility ID column 13286B.

  The customer ID column 13281B stores an ID for identifying the customer. The contract type column 13282B stores the contract type with which the customer contracts with the supplier supplying electricity. The name of the contractor is stored in the contractor name column 13283B. The address column 13284B stores the address of the contractor. The birth date column 13285B stores the date of birth of the contractor. The drawing facility ID column 13286B stores an ID for identifying a drawing facility for drawing electricity into the consumer.

  Accordingly, in the case of FIG. 12, the customer with the customer ID “10000457” has signed a contract with the contract type “usage amount A 20A” and the contractor name is “ABC”. The address is shown as “Hitachi City, Ibaraki Prefecture”. The date of birth of this contractor is shown to be “1984/11/9”. In addition, it is shown that the drawing-in facility with the drawing-in facility ID “567413” finally supplies electricity to the consumer.

(4) Screen Configuration FIG. 13 shows a screen configuration D1 displayed by the display unit 16. The screen configuration D1 includes a calculation condition input area 151A for inputting the calculation condition 151 and an evaluation result output display area 161A for outputting and displaying the evaluation result 161.

  The calculation condition input area 151A includes a check box for inputting or selecting the calculation condition 151, a pull-down menu, a radio button, a character input box, and a calculation execution button. The evaluation result output display area 161A includes display areas for displaying the amount of loss, the failure rate, and the number of failures calculated for each facility.

  For example, when the user intends to input a condition related to “target equipment” in the calculation condition 151, the user selects a check box for selecting “all” or pulls down “type” or “region”. Select by menu.

  When the check box for selecting “all” is checked, all the facilities installed in the power distribution system 30 are set as the evaluation target facilities. When “Type” or “Region” is selected from the pull-down menu, the equipment of the selected type (for example, a switch or a telephone pole) or the equipment installed in the selected area (for example, Ibaraki Prefecture) Set as

  In addition, when the user intends to input a condition related to “calculation type” in the calculation condition 151, a check box for selecting “power failure”, a check box for selecting “control”, or both check boxes. Check the box.

  When the check box for selecting "Power outage" is checked, it is set to calculate the loss due to power outage (electricity charges from customers that would have been obtained without power outage) as an evaluation result. The In addition, when the check box for selecting “control” is checked, the loss due to communication failure (for example, collecting electricity charges of consumers at regular intervals and communicating with the power company or customer's home gateway by communication) It is set to calculate as an evaluation result the compensation amount due to the stop of the control of the smart meter to be transmitted.

  In addition, when the user intends to input a condition related to “unit time” in the calculation condition 151, the user selects either a radio button for selecting “year” or a radio button for selecting “month”. Put a check.

  When the radio button for selecting “Year” is checked, it is set to calculate the annual average loss as the evaluation result. When the radio button for selecting “Month” is checked, it is set to calculate a monthly average loss as an evaluation result.

  In addition, when the user intends to input a condition relating to the “switch pattern” in the calculation condition 151, the user enters a check mark in any or all of the check boxes for selecting the present, future or past, and inputs the period as a character. To do.

  When only the check box for selecting “current” is checked, it is set to calculate the loss amount calculated based on the switching pattern of the switch currently installed in the distribution system 30 as the evaluation result. The In addition, when the checkbox for selecting “Future” or “Past” is checked, the loss calculated taking into account the switching patterns of switches planned to be installed in the future or switches installed in the past. It is set to calculate the amount as the evaluation result.

  In addition, when the user intends to input a condition related to “switch pattern weighting” in the calculation condition 151, the user inputs the weighting ratio of each of the present, the past, and the future.

  When calculating the amount of loss based on the switch patterns of switches that will be installed in the future and the switches that have been installed in the past, in addition to the switch patterns of switches that are currently installed, It is set to calculate an average loss amount weighted to the loss amount as an evaluation result.

(5) Flowchart FIG. 14 shows a processing procedure for distribution system facility evaluation processing. This distribution system facility evaluation process is executed by the cooperation of the CPU 11 and the program 131 when the calculation condition 151 is input by the input unit 15. As described above, the calculation condition 151 includes conditions regarding the target equipment, calculation type, unit time, switch pattern, and switch pattern weighting.

  First, when the target facility search unit 1312 acquires the calculation condition 151 input by the input unit 15 (SP1), the target facility search unit 1312 refers to the power distribution facility information 1323 (FIG. 6) and matches the target facility in the calculation condition 151. (Evaluation target equipment) is searched (SP2).

  For example, when the target facility in the input calculation condition 151 is “electric wire”, the target facility search unit 1312 searches the facility whose facility type is “electric wire” with reference to the distribution facility information 1323.

  At this time, the target facility search unit 1312 may search for a facility that matches the target facility in the calculation condition 151 with reference to the new facility design information 1327 (FIG. 10). In this case, not only equipment currently installed in the power distribution system 30 can be evaluated, but also equipment planned to be installed in the future can be evaluated.

  Next, when there are a plurality of evaluation target facilities obtained as search results, the power outage initial range specifying unit 1313 extracts any one of these facilities (processing target facility), and sets the facility connection information 1322 (FIG. 5). With reference to, the initial range of power failure when it is assumed that the extracted processing target equipment has failed is specified (SP3).

  The detailed processing of step SP3 will be described later (FIG. 15). For example, the power failure initial range specifying unit 1313 refers to the facility connection information 1322 when the processing target facility extracted from the evaluation target facility group is “electric wire”. Then, all the downstream facilities connected downstream in terms of current flow with this “electric wire” are searched, and the downstream facilities obtained as a search result are specified as the initial range of power failure. At this time, the customer or the customer facility to be interrupted immediately after the power failure is specified.

  Next, the post-switching power outage range specifying unit 1314 specifies the post-switching power outage range as a range in which the facility to be processed has failed and still has a power outage after the switch is switched (SP4). .

  Although detailed processing of step SP4 will be described later (FIG. 16), for example, the post-switcher power failure range specifying unit 1314 uses the above-described example with reference to the facility connection information 1322 after the switch is switched. And “electric wire” and all downstream equipment connected downstream in terms of current flow are searched, and the downstream equipment obtained as a search result is specified as the power failure range after switching. At this time, the customer or the customer facility to which a power failure occurs even after switching the switch is specified.

  Next, the power failure time estimation unit 1316 refers to the power failure history information 1325 (FIG. 8), and calculates the expected power failure time for each customer and the assumed communication failure time for each customer facility (for example, smart meter) (SP5). For example, the power failure time estimation unit 1316 refers to the power failure history information (FIG. 8), and when the facility to be processed is “electric wire”, the power failure occurrence date and time and the switch when the same type of facility (wire) fails. From the difference with the switching date and time, an average time (average switching time) from when a power failure occurs until switching of the switch is completed is calculated.

  Next, the power failure time estimation unit 1316 completes the power failure after the switch switching is completed based on the difference between the switch switching date and time and the power failure complete recovery date and time when the same type of equipment (electric wire) as the “electric wire” fails. Calculate the average time (average recovery time) until recovery.

  Then, the power failure time estimation unit 1316 adds the average switching time to the customer and customer equipment specified in step SP3, and adds the average recovery time to the customer and customer equipment specified in step SP4. Then, the expected power outage time for each customer between the occurrence of the power failure and the complete recovery and the communication failure time for each customer facility between the occurrence of the communication failure and the complete recovery are calculated.

  Here, the power failure time estimation unit 1316 calculates both the assumed power failure time and the communication failure time, but if only “power failure” is set as the calculation type in the calculation condition 151, only the assumed power failure time is set. If only “control” is set, only the communication failure time is calculated.

  Next, the average loss amount calculation unit 1317 refers to the customer information 1328 (FIGS. 11 and 12) and calculates an assumed loss amount (SP6).

  For example, the average loss amount calculation unit 1317 first refers to the power consumption amount of the power consumption history information 1328A (FIG. 11) for all customers whose estimated power failure time calculated in step SP5 is greater than 0, and The average power consumption is calculated.

  Next, the average loss amount calculation unit 1317 calculates the power consumption per unit time based on the monthly average power consumption and the unit time in the calculation condition 151, and the calculated power consumption per unit time. Is multiplied by the assumed power outage time to calculate the amount of opportunity loss power due to the power outage during the assumed power outage time. The opportunity loss electric energy is the electric energy used by the consumer who would have been using it if there was no power outage.

  Next, the average loss amount calculation unit 1317 refers to the contract type of the consumer personal information 1328B (FIG. 12), and calculates an electricity charge per 1 kWh based on the average monthly power consumption and the contract type. When calculating the electricity rate per 1kWh, if the customer has signed a contract that increases the unit price of the electricity rate according to the amount of power used, the use of the electricity with the higher unit price is lost due to the power failure. As an example, the electricity charge per 1 kwh is calculated.

  For example, let us consider a case in which an electricity rate contracted by a certain consumer is calculated by the following calculation. It is 10 yen per 1 kwh when the power consumption is 0-100 kwh, 20 yen per 1 kwh between 100 kwh and 200 kwh, and 30 yen per 1 kwh after 200 kwh.

  When the average monthly power consumption of the customer is 220 kwh and the opportunity loss power is 40 kwh, the usage of 40 kwh in the portion of 180 kwh to 220 kwh with the higher unit price out of 220 kwh of the average monthly power consumption is 40 kwh. Assume that it was lost due to a power failure.

  Of this 40 kwh of lost opportunity power, the charge for 20 kwh corresponding to 181 kwh to 200 kwh is 30 yen per 1 kwh, and the charge for 20 kwh corresponding to 201 kwh to 220 kwh is 20 yen per 1 kwh. Based on such an idea, after calculating how much the opportunity loss power amount is per 1 kwh, the expected loss amount is calculated by multiplying it by the opportunity loss power amount.

  The average loss amount calculation unit 1317 calculates an assumed loss amount as described above for each of all customers whose estimated power outage time is greater than 0, and adds up all the assumed loss amounts to obtain one processing target. The estimated loss due to a power failure in one switch pattern when the equipment is assumed to have failed is calculated.

  In addition, the average loss amount calculation unit 1317 determines that the loss amount (compensation) is assumed that damage due to the opportunity loss similarly occurs for the communication failure when “control” is set as the calculation type in the calculation condition 151. Amount).

  For example, the average loss amount calculation unit 1317 calculates an assumed loss amount based on contract information not shown here for each of all the customer facilities in which the communication failure time calculated in step SP5 is greater than 0, and all assumptions are made. By adding the loss amounts, an assumed loss amount due to a communication failure in one switch pattern when one processing target facility is assumed to have failed is calculated.

  Then, the average loss amount calculation unit 1317 adds the estimated loss amount due to the power failure and the estimated loss amount due to the communication failure, thereby assuming the assumed loss in one switch pattern when it is assumed that one processing target facility has failed. Calculate the amount.

  Next, when “past” or “future” is set as the switch pattern in the calculation condition 151, the overall control unit 1311 has calculated the respective assumed loss amounts for all the switch patterns. Is determined (SP7).

  For example, if the past, the future, and the future are set as the switch patterns, the overall control unit 1311 refers to the switch switching history information 1326 (FIG. 9), and the current, past, and future switch patterns are different. Determine whether or not. Then, the overall control unit 1311 determines whether or not the assumed loss amount for three patterns has been calculated when there are one each of the past and future switch patterns (when there are three patterns).

  When the overall control unit 1311 obtains a negative result in the determination at step SP7, the overall control unit 1311 controls each unit to repeat the above-described processing (SP3 to SP6) until the assumed loss amount is calculated for all switch patterns. In contrast, when the overall control unit 1311 obtains a positive result in the determination at step SP7, the overall control unit 1311 proceeds to step SP8.

  When the average loss amount calculation unit 1317 calculates the assumed loss amount for all the switch patterns, the total expected loss amount for all the switch patterns is added and divided by the number of switch patterns. The average loss amount of all switch patterns when the equipment is assumed to have failed is calculated (SP8).

  In addition, the average loss amount calculation part 1317 can also calculate the average loss amount weighted by the switch pattern about the average loss amount of the processing target equipment calculated here. In the case of weighting, the average loss amount calculation unit 1317 uses the weighting value of the switch pattern in the calculation condition 151.

  An example of specific weighting is shown. If the weighting value is 50% for the current switch pattern, 50% for the past and future switch patterns, and the past period is 3 months from the present point in time and there are n switch patterns, the average loss amount The calculation formula is as shown in the following formula (1).

Vn: Loss in current switch pattern
Vf: Loss in future switch pattern
Vbn: Loss in each past switch pattern

  Next, the accident countermeasure cost calculation unit 1318 calculates an average accident countermeasure cost with reference to the maintenance work history information 1324 (FIG. 7) (SP9). For example, the accident countermeasure cost calculation unit 1318 refers to the maintenance work history information 1324 (FIG. 5), and from the maintenance work history for the equipment of the same equipment type as the processing target equipment, the part cost, equipment cost, and work time used for maintenance. The cost for one maintenance is calculated by adding the work cost multiplied by the cost per unit time of the person in charge of the work.

  Then, the accident countermeasure cost calculation unit 1318 similarly calculates the maintenance cost for all the equipment of the same equipment type as the processing target equipment, and calculates the average as the average accident countermeasure cost. The accident countermeasure cost calculation unit 1318 adds the calculated average accident countermeasure cost and the average loss amount calculated in step SP8 to calculate the average loss amount when it is assumed that one processing target facility has failed once. calculate.

  Next, the regional characteristic calculation unit 1319 refers to the maintenance work history information 1324 and the map information 1329, and calculates a failure rate based on the regional characteristics of the processing target equipment (SP10). For example, the regional characteristic calculation unit 1319 refers to the maintenance work history information 1324 and the map information 1329, and calculates the failure rate deviation of the equipment due to the geographical characteristics from the failure history of the same equipment type as the processing target equipment and the topographic information of the map information. calculate.

  Note that the region characteristic calculation unit 1319 may display the calculated failure rate as a graph on a map. In this case, it is possible to grasp at a glance that the failure rate is high or low depending on the region even if it is a processing target equipment of the same equipment type. Will be able to do.

  Next, the facility average failure frequency calculation unit 13191 refers to the maintenance work history information 1324 and calculates the average failure frequency per unit period of the same type of facility as the processing target facility (SP11). For example, the facility average failure frequency calculation unit 13191 refers to the maintenance work history information 1324, and calculates the average failure frequency in the unit period of the target facility type from the failure history in the same facility type as the processing target facility.

  The equipment average failure frequency calculation unit 13191 then adds the average loss calculated in step SP8 and the average accident countermeasure cost calculated in step SP9 to the average loss calculated in step SP10 and the average loss calculated in step SP11. The average loss amount per unit period of the processing target equipment is calculated by multiplying the calculated average failure frequency.

  The overall control unit 1311 determines whether the average loss amount has been calculated for all the processing target facilities (that is, the evaluation target facilities) (SP12).

  If the overall control unit 1311 obtains a negative result in this determination, the overall control unit 1311 proceeds to step SP3 and performs the processing described above until calculating the average loss amount, the average accident countermeasure cost, the failure rate, and the average failure frequency for all the processing target facilities. Control is performed to repeat (SP3 to SP11). In contrast, when the overall control unit 1311 obtains a positive result in the determination at step SP12, the overall control unit 1311 edits the values input and calculated up to steps SP1 to SP12, and displays the edited values as the evaluation results 161 on the display unit 16. (SP13), and this process is terminated.

  FIG. 15 shows a processing procedure of the power outage initial range specifying processing. This power failure initial range specifying process is executed by the overall control unit 1311, the power failure initial range specifying unit 1313, and the communication failure range specifying unit 1315 at the timing when the distribution system facility evaluation process (FIG. 14) moves to step SP3.

  First, the power failure initial range specifying unit 1313 extracts any one facility (processing target facility) that has not yet specified the power failure initial range from the evaluation target facility group searched in step SP2 (SP21).

  Next, the power outage initial range specifying unit 1313 is electrically connected to the extracted processing target facility with reference to the facility connection information 1322 and installed downstream of the processing target facility in terms of current flow. A downstream facility is searched (SP22). Furthermore, the power failure initial range specifying unit 1313 refers to the facility connection information 1322 and is electrically connected to the downstream facility obtained as a search result in step SP22, and more current flows than the downstream facility. Furthermore, the downstream equipment installed downstream is searched.

  As described above, the power outage initial range specifying unit 1313 searches for the downstream equipment connected to the processing target equipment on the downstream side with the processing target equipment as the most upstream, and finally no downstream equipment is searched. It is determined whether or not the downstream facility search is completed (SP23).

  If the power failure initial range specifying unit 1313 obtains a negative result in the determination at step SP23, the process proceeds to step SP22 and repeats the process until the search for all downstream facilities that are connected in current to the processing target facility is completed.

  On the other hand, when the outage initial range specifying unit 1313 obtains a positive result in the determination at step SP23, it specifies all the downstream facilities that are electrically connected to the processing target facility as the outage initial range, and the consumer personal information 1328B. , The service facility is searched for the service facility included in the downstream facility identified as the initial range of power failure, and the customer who receives power supply from the service facility obtained as the search result is identified as the customer in the power failure initial range (SP24). ).

  Next, the communication failure range identification unit 1315 refers to the facility connection information 1322 and is controllably connected to the downstream facility (referred to herein as a power failure facility) obtained as a search result in step SP22, and the power failure facility The downstream facility installed downstream of the control flow is searched (SP25). Further, the communication failure range specifying unit 1315 is connected to the downstream facility obtained as a search result in step SP25 with reference to the facility connection information 1322, and is more controlled than the downstream facility. Furthermore, the downstream equipment installed downstream is searched.

  As described above, the communication failure range specifying unit 1315 searches the downstream facility connected to this power failure facility on the downstream side with the power failure facility as the most upstream, and finally, no downstream facility is retrieved and all downstream It is determined whether or not the facility search is completed (SP26).

  If the communication failure range specifying unit 1315 obtains a negative result in the determination at step SP26, the communication failure range specifying unit 1315 proceeds to step SP25 and repeats the process until the search for all downstream facilities that are controllably connected to the power outage facility is completed.

  On the other hand, if the communication failure range specifying unit 1315 obtains a positive result in the determination at step SP26, the downstream facility obtained as the search result at step SP22 among all the downstream facilities that are controllably connected to the power outage facility. The excluded downstream equipment is specified as the initial range of power outage related to communication failure, and with reference to the distribution facility information 1323, the same equipment as the downstream equipment specified as the initial range of power outage is searched using the equipment ID as a key and obtained as a search result. Among the recorded records, the facility whose owner is the consumer is specified as the consumer facility in the initial outage range (SP27).

  Then, the overall control unit 1311 temporarily stores the customer specified in step SP24 and the customer equipment specified in step SP27 in the main memory 12 or the storage device 13 as a power failure initial range (SP28), and ends this process. To do.

  FIG. 16 shows a processing procedure for power failure range specifying processing after switch switching. This power failure range specifying process after switch switching is the general control unit 1311, the power failure range specifying unit 1314 after switch switching, and the communication failure range specifying unit 1315 at the timing when the distribution system facility evaluation process (FIG. 14) moves to step SP4. It is executed by.

  First, the post-switcher power failure range identifying unit 1314 extracts any one facility (processing target facility) that has not yet identified the post-switcher power failure range from the evaluation target facility group searched in step SP2. (SP31).

  Next, after switching the switch, the power failure range specifying unit 1314 refers to the distribution system information 1321, identifies the power transmission section to which the processing target facility belongs in the configuration of the distribution system 30, and switches the switch in the specified power transmission section Simulate the power supply situation (such as a detour route). And the power failure range specific | specification part 1314 after switch switching specifies the area which cannot receive supply of electric power as a process target apparatus fails in the power transmission area after switching a switch as a power failure area (SP32).

  Next, the power failure range specifying unit 1314 after switching the switch refers to the consumer personal information 1328B, and identifies the customer who lives in the specified power failure section as the customer in the power failure range after switching the switch (SP33).

  Steps SP34 to SP37 are the same processes as steps SP25 to SP28 of the initial power outage range specifying process (FIG. 15), and thus detailed description thereof will be omitted. The specified customer and the customer facility specified in step SP36 are temporarily stored in the main memory 12 or the storage device 13 as a power failure range after switch switching (SP37), and this process is terminated.

(6) Effects of the present embodiment As described above, according to the present embodiment, when it is assumed that any equipment installed in the distribution system 30 has failed and a power failure or communication failure has occurred, Currently, the estimated loss amount is calculated for the past and future switch patterns, and the average loss amount is calculated from the calculated estimated loss amount. Therefore, the distribution system 30 at the time of calculating the average loss amount Even if there are some changes, a highly accurate evaluation result can be obtained.

  Also, add the average accident countermeasure cost to the average loss amount to calculate the average loss amount from the occurrence of a single failure or communication failure until the complete recovery. On the other hand, the failure rate and the unit period per unit period Since the average number of failures is calculated and the loss per unit period is calculated by multiplying the average loss amount until complete recovery by the failure rate and the average number of failures, a detailed evaluation result can be obtained.

  Since a high-definition evaluation result can be obtained by this embodiment, for example, although the average loss amount until complete recovery is low, the loss rate per unit period is large because the failure rate and the average number of failures are large. It can be easily grasped that facilities that are expensive will need to be reinforced, maintained or newly installed. Therefore, with reference to the evaluation results, it is possible to efficiently examine facilities that require reinforcement, maintenance, or new installation.

1 Distribution System Equipment Evaluation Device 11 CPU
12 Main memory 13 Storage device 131 Program 132 Data 14 Network interface 15 Input unit 151 Calculation condition 16 Display unit 161 Evaluation result

Claims (15)

In the distribution system facility evaluation apparatus that evaluates the distribution system by calculating the amount of loss in the event of a power failure due to failure of any of the plurality of facilities installed in the distribution system,
An input unit for inputting the calculation condition of the loss amount;
A storage unit for storing a program and data necessary for calculating the loss amount;
A display for displaying the amount of loss;
A processor for calculating the amount of loss based on the calculation condition, the program and the data;
The processor is
Search for an evaluation target facility from a plurality of facilities installed in the distribution system,
The power failure initial range immediately after the power failure and the power failure range after switch switching after switch switching when assuming that a power failure has occurred due to failure of the evaluation target equipment obtained as a search result, and the identified Identify customers included in the initial power outage range and customers included in the power outage range after switching the switch,
Calculate the estimated power outage time for each identified consumer,
Multiply the estimated power outage time for each calculated consumer by the amount of power used per unit time and the unit price of the electricity charge, and calculate the electricity charge that would have been obtained if a power outage did not occur for each consumer, The distribution system equipment evaluation device characterized by calculating the amount of loss due to a power failure out of the amount of loss by adding the calculated electricity charges for each consumer. The processor is
2. The distribution system facility evaluation according to claim 1, wherein the evaluation target facility is searched not only for a plurality of facilities currently installed in the distribution system but also for a facility to be installed in the distribution system in the future. apparatus. The processor is
For each switching pattern of a switch currently installed in the distribution system, a switch installed in the past, and a switch scheduled to be installed in the future, after switching between the consumer and the switch included in the initial power outage range Identify customers in the power outage range,
Calculate the estimated power outage time for each identified consumer,
Multiply the calculated estimated power outage time for each consumer by the amount of power used per unit and the unit price of the electricity charge, and calculate the electricity charge that would have been obtained if no power outage occurred for each consumer. 2. The distribution system according to claim 1, further comprising: calculating the amount of loss due to the power failure by adding the calculated electricity charges for each consumer and dividing the combined electricity charges by the number of the opening and closing patterns. Equipment evaluation device. The processor is
The unit price of the electricity charge is also changed according to the change when the unit price of the electricity charge is specified to change according to the amount of electric power used by the consumer. Distribution system equipment evaluation equipment. The processor is
In the case where a customer facility that sequentially transmits electricity charges paid by the customer to the customer by communication is installed in the power distribution system, after switching the customer facility and the switch included in the initial outage range Identify the customer equipment included in the power outage range,
Calculate communication failure time for each identified customer facility,
The amount of loss is calculated by calculating the amount of compensation prescribed in advance for each customer facility according to the communication failure time for each of the customer facilities calculated, and adding the amount of compensation for each customer facility calculated. The distribution system equipment evaluation device according to claim 1, wherein a loss amount due to a communication failure is calculated. The processor is
Calculate the accident countermeasure costs required for the restoration of the equipment to be evaluated,
Calculate the failure rate by the regional characteristics of the equipment to be evaluated,
The distribution system facility evaluation apparatus according to claim 1, wherein an average number of failures per unit time of the facility to be evaluated is calculated. The processor is
Sum of the loss due to the power outage and the accident countermeasure cost, and multiply the sum by the failure rate and the average number of failures per unit time, thereby calculating the average loss per unit period of the equipment to be evaluated The distribution system facility evaluation apparatus according to claim 6, wherein: In the distribution system facility evaluation apparatus that evaluates the distribution system by calculating the amount of loss in the event of a power failure due to failure of any of the plurality of facilities installed in the distribution system,
An input unit for inputting the calculation condition of the loss amount;
A storage unit for storing a program and data necessary for calculating the loss amount;
A display for displaying the amount of loss;
A processor for calculating the amount of loss based on the calculation condition, the program and the data;
The processor is
Search for an evaluation target facility from among a plurality of facilities installed in the distribution system,
The power failure initial range immediately after the power failure and the power failure range after switch switching after switch switching when assuming that a power failure has occurred due to failure of the evaluation target equipment obtained as a search result, and the identified Identify customers included in the initial power outage range and customers included in the power outage range after switching the switch,
Calculate the estimated power outage time for each identified consumer,
Multiply the calculated estimated power outage time for each consumer by the amount of power used per unit time and the unit price of the electricity charge, and calculate the electricity charge that would have been obtained if no power outage occurred for each consumer. , Calculating the amount of loss due to a power failure out of the amount of loss by adding the calculated electricity charges for each consumer,
In the case where a customer facility that sequentially transmits electricity charges paid by the customer to the customer by communication is installed in the power distribution system, after switching the customer facility and the switch included in the initial outage range Identify the customer equipment included in the power outage range,
Calculate communication failure time for each identified customer facility,
Based on the calculated communication failure time for each customer facility and the compensation amount prescribed in advance according to the communication failure time, the compensation amount is calculated for each customer facility, and for each calculated customer facility The amount of loss due to communication failure is calculated out of the total loss amount,
Calculate the accident countermeasure cost required for recovery when the equipment subject to evaluation breaks down,
Calculate the failure rate according to the regional characteristics of the evaluation equipment,
Calculate the average number of failures per unit time of the evaluation equipment,
Sum of the loss due to the power outage and the accident countermeasure cost, and multiply the sum by the failure rate and the average number of failures per unit time, thereby calculating the average loss per unit period of the equipment to be evaluated To calculate
The display unit displays any or all of the loss due to the power failure, the loss due to the communication failure, the accident countermeasure cost, the failure rate, the average failure frequency, and the average loss amount. Distribution system equipment evaluation equipment. Distribution system facility evaluation method for distribution system facility evaluation apparatus for evaluating the distribution system by calculating a loss amount when a power failure occurs due to a failure of any of a plurality of facilities installed in the distribution system In
The processor of the power distribution system equipment evaluation device,
A first step of searching for an evaluation object facility from among a plurality of facilities installed in the distribution system;
The power failure initial range immediately after the power failure and the power failure range after switch switching after switch switching when assuming that a power failure has occurred due to failure of the evaluation target equipment obtained as a search result, and the identified A second step of identifying a customer included in a power outage initial range and a customer included in the power outage range after switching the switch;
A third step of calculating an estimated power outage time for each identified consumer;
Multiply the estimated power outage time for each calculated consumer by the amount of power used per unit time and the unit price of the electricity charge, and calculate the electricity charge that would have been obtained if a power outage did not occur for each consumer, A distribution system facility evaluation method comprising: a fourth step of calculating a loss due to a power out of the loss by adding the calculated electricity charges for each consumer. In the first step,
10. The distribution system facility evaluation according to claim 9, wherein the evaluation target facility is searched not only for a plurality of facilities currently installed in the distribution system but also for a facility to be installed in the distribution system in the future. Method. In the second step,
For each switching pattern of a switch currently installed in the distribution system, a switch installed in the past, and a switch scheduled to be installed in the future, after switching between the consumer and the switch included in the initial power outage range Identify customers in the power outage range,
In the third step,
Calculate the estimated power outage time for each identified consumer,
In the fourth step,
Multiply the calculated estimated power outage time for each consumer by the amount of power used per unit and the unit price of the electricity charge, and calculate the electricity charge that would have been obtained if no power outage occurred for each consumer. The power distribution system according to claim 9, further comprising: calculating the amount of loss due to the power failure by adding the calculated electricity charges for each consumer and dividing the combined electricity charges by the number of the opening and closing patterns. Equipment evaluation method. In the fourth step,
The unit price of the electricity charge is also changed according to the change when the unit price of the electricity charge is specified to change according to the amount of electric power used by the consumer. Distribution system equipment evaluation method. In the second step,
In the case where a customer facility that sequentially transmits electricity charges paid by the customer to the customer by communication is installed in the power distribution system, after switching the customer facility and the switch included in the initial outage range Identify the customer equipment included in the power outage range,
In the third step,
Calculate communication failure time for each identified customer facility,
In the fourth step,
The amount of loss is calculated by calculating the amount of compensation prescribed in advance for each customer facility according to the communication failure time for each of the customer facilities calculated, and adding the amount of compensation for each customer facility calculated. The amount of loss due to communication failure is calculated. The distribution system facility evaluation method according to claim 9. The processor is
A fifth step of calculating an accident countermeasure cost required for restoration of the evaluation target facility;
A sixth step of calculating a failure rate according to regional characteristics of the evaluation object facility;
The distribution system facility evaluation method according to claim 9, further comprising: a seventh step of calculating an average number of failures per unit time of the evaluation target facility. The processor is
Sum of the loss due to the power outage and the accident countermeasure cost, and multiply the sum by the failure rate and the average number of failures per unit time, thereby calculating the average loss per unit period of the equipment to be evaluated The distribution system equipment evaluation method according to claim 14, further comprising: an eighth step of calculating