KR101215595B1 - Management system for planed outage and method thereof - Google Patents

Abstract

PURPOSE: A distribution line dead-line work management and a method thereof are provided to secure the safety of a worker by supporting an operation to prevent a human error in a manual operation. CONSTITUTION: A dead-line work reviewing and managing server(100) writes a work order by obtaining various information from a distribution automation system(200). The distribution automation system includes a transformation operating server(210), a distribution automation server(230), a transformation operating information DB(220), and a distribution system connection information DB(240). The distribution automation sever monitors a power flow and a current state of a distribution network by collecting power information through a distribution automation communication network(300). A distribution automation terminal device(450) and a distribution line switch(440) are installed in a distribution line(400). A user terminal(500) provides interface for monitoring and controlling a system to a user. [Reference numerals] (100) Dead-line work reviewing and managing server; (210) Transformation operating server; (220) Transformation operating information DB; (230) Distribution automation server; (240) Distribution system connection information DB; (250) Section load DB; (300) Distribution automation communication network; (410) Substation breaker; (420) Substation terminal device; (430) Distribution line breaker; (440) Distribution line switch; (450) Distribution automation terminal device; (500) User terminal

Description

Management System and Planned Outage and Method of Distribution Line

The present invention relates to a system and method for managing interruption work based on a disconnection diagram.

The distribution system always takes place such as new and expanded power facilities, replacement of old equipment, and relocation. Therefore, it is desirable to perform the uninterruptible work as much as possible in order to prevent disruption of power supply to the customer. However, there is an inevitable occurrence of truce work. This cease-fire operation requires the switch operation related to the separation of the armistice section using manual equipment as well as the automatic equipment and the load switching of the healthy section.

Regardless of whether there is a planned ceasefire or an emergency ceasefire, it is necessary to discuss and review with the distribution supervision and distribution system staff in advance to carry out the distribution system cease-fire work. Through this, the switch operation procedure for load transfer and isolation of armistice sections for non-armistice sections should be reviewed.In this case, the load status of link lines and associated substations, characteristics of operation switches and breakers, and prevention of reclosing In addition, the review work from various points of view, such as the review of electric currents in connection with the connection point between lines and substations, should be preceded.

During the preliminary review of the cease-fire operation, the distribution inspection supervision utilizes not only work lines but also substations of the load-transferable substations in the automatic distribution system and the use of automatic switchgear load current to isolate the armistice section and transfer the whole section. Review the load transfer plan. In addition, the power distribution construction supervisor prepares a work instruction by using the derived load transfer method, and inputs it to the "distribution center equipment operation management system" before the work execution date to notify the power distribution center. After that, the distribution system manager of the distribution center examines the suitability of the entered work orders.

Meanwhile, the preliminary review of the distribution line cease-fire work is performed by predicting the system information at the scheduled time of operation, such as the automatic load and the automatic switch section load, the system connection information and the substation operation information. In particular, in the case of the section load, a large difference occurs according to seasons and time zones, and selecting an incorrect work schedule point may cause a problem in the load switching method.

In addition, the part where the manual switchgear section load estimation method is made roughly in the cease-fire work in which the load switching method should be derived in the manual switchgear unit also acts as a factor that may impair the operation reliability.

As described above, the prior review of the cease-fire work is manually handled by the distribution supervision and distribution distribution personnel, so it is highly likely to cause unnecessary power outages or accidents that are fatal to the safety of workers due to carelessness or mistakes. Work efficiency is reduced because prior review is not performed according to the standard.

Therefore, there is an urgent need for a system capable of determining an optimized load transfer method according to the designation of an armistice section and simulating it in advance.

The present invention determines an optimized series of operating solutions including isolation of working sections that meet load transfer criteria, system configuration constraints, transfer priorities, and transfer of loads in the health zone, and in advance using the operating solutions. Provides a simulation system of power distribution line operation and control system.

In addition, it provides a system and method for reviewing and managing cease-fire operations on distribution lines that can minimize human error, prevent unnecessary power outages, and ensure worker safety through systemized operation support instead of the existing manual methods.

Distribution line interruption work review management method according to the first aspect of the present invention for achieving the object of the present invention, the work based on one or more of the seasonal, weekday, day and night, weather conditions and hourly past load statistical data Estimating the section load of the scheduled date and time, calculating the section load of the manual switchgear using the section load of the scheduled date and time, setting an armistice work section based on the section load of the manual switchgear, the armistice work Setting a backup line of a section, determining a work procedure for the armistice work section, performing a simulation by using the determined work procedure, and generating a work order reflecting the simulation result; .

Here, the step of predicting the interval load of the scheduled work schedule may further include applying a premium rate to the one or more past load statistics.

Here, the step of calculating the manual switchgear section load may be a step of calculating the manual switchgear section load by using the section load, section positive and section transformer capacity information of the scheduled working time.

The step of setting the armistice work section may be a step of setting the armistice work section to a minimum section including the manual switchgear in the distribution line.

Here, the setting of the backup line may be a step of searching for and selecting the backup line using at least one of an internal loop, a connection line, and a connection line in which sound load is transferred.

The determining of the work procedure may include determining a work procedure by adding a weight to any one of minimizing the number of manipulations, load leveling, and minimizing sound load switching.

The determining of the work procedure may further include manually changing an operation when the determined work procedure fails to be performed.

Here, the performing of the simulation may be a step of simulating the ceasefire work according to the determined work procedure for the ceasefire work zone.

In addition, the armistice work review management server for performing the distribution line cease-fire review management according to the second aspect of the present invention, the section load for calculating the section load of the manual switchgear by predicting the section load of the scheduled work based on the statistical data An operation unit, an armistice work section setting unit for setting an armistice work section based on the section load of the manual switchgear, a backup line setting unit for determining a backup line for the armistice work section, and a work procedure for the armistice work section It may include a work procedure setting unit, a simulation execution unit for performing a simulation according to the determined work procedure, and a work order generation unit for generating a work order by reflecting the simulation results.

Here, the section load calculation unit may predict the section load at the scheduled working time based on at least one of seasonal, day of the week, day and night, weather conditions, and hourly past load statistical data.

Here, the section load calculation unit may predict the section load at the scheduled working time by applying a premium to the at least one past load statistical data.

Here, the section load calculator may calculate the section load of the manual switchgear by using section load, section affirmation, and section transformer capacity information of the scheduled work date and time.

Here, the cease-fire work section setting unit may set the cease-fire work section to the minimum section including the manual switch in the distribution line.

Here, the backup line setting unit may set the backup line by using at least one of an internal ruff, a link line, and a link line in which sound load is transferred.

Here, the work procedure setting unit may determine the work procedure by adding a weight to any one of minimizing the number of manipulations, load leveling, and minimizing healthy load switching.

According to an embodiment of the present invention, an optimized series of operations including isolation of work zones and load transfer of healthy zones that satisfy load transfer criteria, system configuration constraints, transfer priorities, etc. The solution can be determined and simulated in advance using the manipulation solution.

In addition, according to an embodiment of the present invention, through the system operation support to prevent human errors that can occur in the conventional manual method to prevent unnecessary power outages, to ensure the safety of work, to establish a unified review criteria for power distribution interruption plan Improve your work efficiency and reduce your turnaround time.

1 is a schematic diagram of a general distribution network.
2 is a structural diagram of a system for reviewing a truce work of a distribution line based on a disconnection diagram according to an embodiment of the present invention.
Figure 3 is a detailed configuration of the truce work review management server according to an embodiment of the present invention.
4 is a flowchart of a distribution line cease-fire review management method according to an embodiment of the present invention.
5 is a flow chart for predicting the interval load of the scheduled work schedule according to an embodiment of the present invention.
6 is a view for explaining a method for calculating the manual load switch interval load according to an embodiment of the present invention.
7 is an exemplary view for setting a distribution line cease-fire operation section in a disconnected diagram according to an embodiment of the present invention.
8 is a diagram illustrating a method of selecting a backup line of a truce work zone in a disconnected diagram according to an embodiment of the present invention.
9 is a flowchart illustrating a work procedure for an armistice work zone according to an embodiment of the present invention.
10 is a flowchart for performing a work procedure for a ceasefire work zone according to an embodiment of the present invention.
11 is a view for performing a work procedure for the armistice work section according to an embodiment of the present invention.
12 is an exemplary view showing a result of performing a work procedure for an armistice work section according to an embodiment of the present invention.

The present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a general distribution network. The distribution network 400 is connected to the substation breaker 410 of the substation and may include a circuit breaker 430 for a distribution line, a switch 440 for a distribution line, and a terminal device 450 for a distribution line. Meanwhile, the substation may include a substation terminal device 420. Each device can be operated automatically or manually and can be branched off the track and connected to different link lines.

2 is a structural diagram of a system for reviewing a truce work of a distribution line based on a disconnection diagram according to an embodiment of the present invention.

As shown in FIG. 2, the distribution line cease-fire work review system includes an armistice work review management server 100, an external distribution automation system 200, a distribution automation communication network 300, and a distribution line 400. In addition, it may include a variety of user terminal 500 is connected to the ceasefire task review management server 100 to provide a user interface for system monitoring and control.

The ceasefire work review management server 100 obtains various necessary information from the distribution automation system 200, simulates the ceasefire work transfer work in advance, and creates a work instruction by reflecting the result. Specifically, the ceasefire work review management server 100 may calculate the load current of the scheduled work schedule, the manual switchgear section load, and the loop algae when the substation is linked using the distribution system information, substation system information, transformer capacity information, and the like. have. Hereinafter, a detailed configuration of the truce work review management server 100 will be described in detail with reference to FIG. 3.

The distribution automation system 200 includes various servers and databases for protecting, monitoring and controlling substations and distribution networks connected thereto and storing and managing data. Specifically, the distribution automation system 200 is a substation breaker 410, a distribution line breaker 430, a distribution line switch (installed at an appropriate position of the distribution line 400 for the purpose of protection, monitoring and control of the distribution network) 440, the substation terminal device 420, and the distribution automation terminal device 450 are collected. To this end, the distribution automation system 200 may be connected to each device on the distribution line 400 using the distribution automation communication network 300 to transmit and receive information.

In addition, the distribution automation system 200 includes a substation operation server 210, a distribution automation server 230, and a substation operation information DB 220 interlocked with this, a distribution system connection information DB 240, and a section load DB 250. It may include.

Substation operation server 210 may include a substation automation system (SCADA) for performing the operation of the substation facility and a substation operation result management system (SOMAS) for storing the system information and load information, through which the protection of the substation system Perform monitoring and control.

The distribution automation server 230 may collect power information such as an open / closed state and voltage and current of each device through the distribution automation communication network 300 to monitor the current state and power flow of the distribution network.

In addition, the distribution automation server 230 transmits an operator's control command to the distribution automation terminal device 450 and the distribution line switch 440 installed on the distribution line 400 via the distribution automation communication network 300. By inserting or opening the furnace switch 440, a line change and load transfer operation according to work overload and failure can be performed.

The distribution automation server 230 may include a distribution automation main server that performs operation of a distribution facility, and a distribution automation history server that stores distribution system information and history information.

The substation operation information DB 220 may store and manage substation drawing load information, substation system information, and substation breaker operation information.

The distribution system connection information DB 240 may store and manage distribution system connection information, ship type information, gold length information, and section transformer capacity information.

The section load DB 250 may store and manage the automatic switchgear load current information, hourly load current information, maximum load information, minimum load information, average load information, and the like.

The user terminal 500 provides an operation management interface required for various users involved in the ceasefire work. The user terminal 500 may be provided to the construction department, review department, facility management department and other users.

Next, a detailed configuration of the truce review operation management server 100 will be described.

Figure 3 is a detailed configuration of the truce work review management server according to an embodiment of the present invention. As shown in FIG. 3, the ceasefire work review management server 100 includes a section load calculator 110, an armistice work section setting unit 120, a backup line setting unit 130, a work procedure setting unit 140, and a simulation. The execution unit 150 and the work order generation unit 160 are included.

The section load calculation unit 110 predicts the section load at the scheduled working time, and calculates the section load of the manual switchgear using the section load calculation. Specifically, the section load calculator 110 predicts the section load at the scheduled working time based on the statistical data. Such statistical data may include seasonal past loads, past daily loads, past daily loads during the day and night, past loads by weather conditions, and historical past loads over time. In this case, the section load calculator 110 may predict the section load at the scheduled working time by applying a premium rate to the one or more past load statistics. The interval load prediction method at the scheduled working time will be described later in detail with reference to FIG. 5.

The section load calculation unit 110 utilizes the sum of the section load at the scheduled working time and the line capacity of the distribution automation system 200 and the transformer capacity including the section high voltage customer contract power of the body distribution information system (NDIS). The load can be calculated statistically. The section load calculation method will be described later in detail with reference to FIG. 6.

The armistice work section setting unit 120 sets the armistice work section to a minimum section including a manual switch in the distribution line.

Specifically, the cease-fire zone work section setting unit 120 sets the distribution line cease-fire work zone in the disconnected diagram. As shown in FIG. 7, the setting of the armistice work section may be designated as a minimum section including a manual switchgear, and when a specific section of a track to be designated as a truce section is specified, information about the found track is displayed on the single-line diagram screen. It may be displayed (S700). In this case, the line information displayed on the screen may include an ID of the truce, a line name, a power switch and a load switch of the truce.

The backup line setting unit 130 determines the backup line for the set cease-fire work period.

In detail, the backup line setting unit 130 sets the backup line using at least one of an inner loop, a link line, and a link line in which sound loads are transferred. The backup line setting unit 130 searches for the backup line for switching of the healthy load according to the occurrence of the ceasefire section by using the information about the ceasefire work section.

As illustrated in FIG. 8, when searching for a backup line, one or more backup lines may be determined according to a priority. In addition, one backup line may be automatically selected among the determined one or more backup lines, or may be selected by an operator (S800). For example, the backup line setting unit 130 may search the backup line using an inner loop, which is a loop in the work section line, or may search the backup line using one or more link lines. In addition, the backup line may be searched by using one or more link lines that transfer the healthy load.

The work procedure setting unit 140 determines a work procedure (hereinafter, also referred to as an “operation procedure”) for the determined armistice work section. The operation procedure according to the cease-fire operation can be calculated using the same algorithm conceptually and designally as the operation procedure regarding the load transfer of the power section due to the failure, but it is sounder than the expansion to the range including the manual switchgear and separation of the section. The difference is that the transfer of intervals is performed first.

In the work procedure calculation method, the work procedure can be determined by applying the transfer method of 1 ~ 3 rank considering the efficiency of track operation. In detail, the work procedure setting unit 140 may determine the best work procedure in terms of minimizing the number of manipulations, load leveling, or minimizing healthy load switching. In addition, it is also possible to set the work procedure by setting different weights for each of the three criteria. In this case, it is possible to additionally include a function for manually switching in case the operation of the device fails while the derived work procedure is in progress. In addition, it may further include a reduction operation procedure is performed in the reverse order after the operation is completed. A method of calculating and performing a specific work procedure will be described in detail with reference to FIGS. 9 and 10.

The simulation performing unit 150 performs the simulation according to the determined work procedure. The simulation execution unit 150 may display success or failure of the execution result on the screen, and may divide and execute each step of the work procedure.

The work order generation unit 160 generates a work order by reflecting the simulation result in the determined work procedure. In addition, the work order generation unit 160 may provide a function for the operator to further edit details of the work of the generated work order.

Next, a distribution line cease-fire review work management method according to an embodiment of the present invention will be described.

4 is a flowchart of a distribution line cease-fire review management method according to an embodiment of the present invention. As shown in Figure 4, the distribution line cease-fire work review management method, the step of predicting the interval load of the scheduled work schedule based on one or more of the seasonal, day of the week, day and night, weather conditions and hourly past load statistical data, Calculating a section load of the manual switchgear using the section load of the scheduled work schedule, setting a truce work section based on the section load of the manual switchgear, setting a backup line of the truce work section, and The method may include determining a work procedure for an armistice work section, performing a simulation using the determined work procedure, and generating a work instruction based on the simulation result.

First, the section load calculation unit 110 predicts the section load at the scheduled working time (S400). Although it is impossible to accurately predict future loads, it is not possible to predict the load at the scheduled working time with the maximum current of the closest past load statistics, taking into account the load fluctuation variables such as season, week / night, weekday / weekend, and other conditions. Can be. In this case, a premium rate may be applied to each variable to further reflect load variation conditions such as weather conditions and holidays.

A more detailed description of the method of predicting the interval load of the scheduled work date, in Fig. 5, first, input the scheduled work date (S500), and then, specify the statistical range of the past load to be used as basic statistical data ( S510). Subsequently, by examining whether or not the load premium rate is applied (S520), if the premium rate is to be applied, the load premium rate may be input to a desired load variation variable and applied to statistical information (S530). If the premium rate is not applied, the maximum load during the statistical period is selected without input of the load premium rate (S540). Thereafter, the load prediction value at the scheduled work schedule is determined using the selected section load statistics (S550).

4, the section load calculation unit 110 calculates the section load of the manual switchgear using the estimated section load at the scheduled work schedule (S410). The calculation method of section load of manual switchgear is as follows.

Where M _sec is the manual switch section load, V _n is the nominal voltage of the distribution line, I _Ssec is the load current of the automation equipment section, L _Ssec is the automation equipment section, L _Msec is the manual equipment section, and P _Ssec Is the automation equipment section transformer capacity and P _Msec is the manual equipment section transformer capacity. On the other hand, FIG. 6 is a diagram schematically illustrating the above section load calculation method in a single line diagram.

Thereafter, the cease-fire work section setting unit 120 sets a cease-fire work section for a distribution line including a manual switch (S420). The setting of armistice work intervals shall be specified as the minimum intervals with manual switchgear.

Thereafter, the backup line setting unit 130 sets a backup line for the set truce work period (S430). In this case, the backup line may be set using at least one of an internal loop, a link line, and a link line in which sound loads are transferred.

Thereafter, the work procedure setting unit 140 determines a work procedure for the armistice work section. In addition, the work procedure setting unit 140 may determine a reduction procedure corresponding to the work procedure (S450).

Specifically, as shown in FIG. 9, the calculation of the work procedure for the armistice work section first calculates the load of the transfer section (S900). Thereafter, it is determined whether there is a backup line for the truce work section including the transfer section (S910), and if there is a backup line, it is determined whether there is an overload or a voltage drop (S920). If the backup line does not exist or there is an overload or voltage drop, it is determined that the transfer is impossible (S950) and the operation can be terminated. If there is a backup line and there is no overload or voltage drop, the recovery procedure is calculated (S930), and the work procedure for each priority is displayed (S940).

On the other hand, Figure 10 is shown as an example of the process of performing the work procedure according to an embodiment of the present invention.

First, in the armistice work section, the backup line connection switch is inserted (S1000). At this time, if the breaker is tripped (S1010), the work is manually switched (S1060). If the breaker is not tripped, the load side switchgear in the armistice section is opened (S1020). When the opening of the armistice section load side switchgear is normally terminated (S1030), the power supply section switchgear of the ceasefire section is opened (S1040), and if not normally terminated, the operation is manually switched (S1060). When the opening of the power supply section of the cease-fire zone is normally terminated (S1050), when the work is terminated and the work is not normally terminated, the work is manually switched (S1060).

Then, in FIG. 4, the simulation performing unit 150 performs the simulation using the determined work procedure (S450). The work procedure can be modified to reflect the simulation result.

Thereafter, the work order generation unit 160 may create a work order by reflecting the work procedure and the simulation result. The generated work orders may be automatically performed on the manual or distribution automation server 230 by an engineer or an operator. The performance result may be collected and displayed to the operator through the user terminal 500. 11 is an exemplary view showing step by step results of a distribution line cease-fire operation according to the work order. As shown in FIG. 11, the original state and the post-operation state for each device may be displayed. In addition, as shown in Fig. 12, it is also possible to display the step-by-step operation status and operation results, respectively.

According to the above-described configuration, prediction of the section load and manual switch section stored and transmitted to the distribution automation server and the substation operation server from the substation breaker, the distribution line breaker and the distribution line switchgear for the distribution line cease-fire operation via the automation communication network. Through the load, it is possible to predict the load at the scheduled working time and review the series of processes such as transfer of armistice work section and isolation of work section on the system, so that faster and more accurate and unified review and work execution can be performed than conventional manual review method. As a result, the efficiency of ceasefire operations is greatly improved.

One embodiment of the present invention may also be embodied in the form of a recording medium including instructions executable by a computer, such as program modules, being executed by a computer.

Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media.

In addition, the computer-readable medium may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

Communication media typically includes any information delivery media, including computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. .

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

Claims (15)

delete In the distribution line truce work review management method,
Estimating the interval load at the scheduled working time based on one or more of seasonal, day of the week, day and night, weather conditions, and hourly past load statistics;
Calculating the section load of the manual switchgear using the section load of the scheduled work schedule;
Setting an armistice work section based on the section load of the manual switch;
Setting a backup line of the armistice work section;
Determining a work procedure for the armistice work section,
Performing a simulation using the determined working procedure; and
Generating a work order by reflecting the simulation result;
The step of predicting the interval load of the scheduled work period further comprises the step of applying a premium rate to the one or more past load statistics, distribution line ceasefire work review management method.
The method of claim 2,
The step of calculating the manual switch section load,
And calculating the manual switchgear section load by using section load, line affirmation, and section transformer capacity information of the scheduled work date and time.
The method of claim 2,
The step of setting the armistice work section,
And setting the cease-fire work section to the minimum section including the manual switch in the distribution line.
The method of claim 2,
Setting the backup line,
And searching and selecting the backup line by using at least one of an internal loop, a connecting line, and a connecting line having transferred a healthy load. The method of claim 2,
Determining the work procedure,
A method for reviewing distribution line truce work, which is a step of determining a work procedure by adding a weight to any one of minimizing the number of operations, load leveling, and minimizing healthy load switching.
The method according to claim 6,
Determining the work procedure,
And manually changing an operation when the determined work procedure fails to perform.
The method of claim 2,
Wherein performing the simulation comprises:
And simulating a ceasefire work according to the determined work procedure for the ceasefire work section, a distribution line ceasefire work review management method.
delete In the truce operation review management server that performs the distribution line cease-fire review management,
Section load calculation section for calculating section load of manual switchgear by predicting section load at work due date based on statistical data,
Armistice work section setting unit for setting the armistice work section based on the section load of the manual switchgear,
A backup line setting unit for determining a backup line for the armistice work section,
A work procedure setting unit for determining a work procedure for the armistice work section,
A simulation performing unit for performing a simulation according to the determined working procedure;
It includes a work order generation unit for generating a work order by reflecting the simulation result,
The section load calculator,
An armistice work review management server that predicts a section load at a scheduled date of work based on one or more of seasonal, day of the week, day and night, weather conditions, and hourly past load statistics.
11. The method of claim 10,
The section load calculator,
A truce work review management server for predicting a section load at the scheduled working time by applying a premium rate to the at least one past load statistical data.
11. The method of claim 10,
The section load calculator,
The armistice work review management server further comprising calculating the manual switchgear section load by using the section load, line affirmation and section transformer capacity information of the scheduled work date and time.
11. The method of claim 10,
The ceasefire work section setting unit,
Setting an armistice work section to the minimum section including the manual switch in the distribution line, ceasefire work review management server.
11. The method of claim 10,
The backup line setting unit,
An armistice operation review management server for setting the backup line by using at least one of an inner loop, an interconnection line, and an interconnection line that transfers a healthy load.
11. The method of claim 10,
The work procedure setting unit,
An armistice work review management server that determines a work procedure by adding a weight to any one of minimizing the number of operations, load leveling, and minimizing healthy load switching.

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