KR101589708B1 - Management method for planned power outage of power distribution line - Google Patents

Abstract

The present invention relates to a management method of a dead-line operation when constructing a distribution line which can continuously supply power to a customer through a backup line when constructing a distribution line and, more specifically, to a management method of a dead-line operation when constructing a distribution line which enables a stable and efficient dead-line operation by monitoring each section in real time using a terminal apparatus which composes a mesh network.

Description

{Management method for planned power outage of power distribution line}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of managing an interruption work during construction of a distribution line, which is capable of continuously supplying power to a customer through a backup line when constructing a distribution line, The present invention relates to a method for managing a truce work in a distribution line construction that enables a stable and efficient truce work by monitoring each section in real time by using the terminal.

In the power distribution system, operations such as the establishment of new electric power facilities, expansion of facilities, replacement and replacement of old facilities will always occur. Therefore, a plan for performing uninterrupted operation should be established so that there is no disruption to the power supply on the customer side.

In such a cease-fire, it is necessary to switch the related equipment to switch over to the truce period by separating the truce period by using the automatic equipment as well as the automation equipment.

In addition, regardless of whether a planned ceasefire or an emergency shutdown, it is necessary to discuss and review the ceasefire with the supervisor of the distribution company and the distribution system person in advance in order to perform a ceasefire operation for a specific section on the distribution line.

At this time, it is necessary to examine the load switching and isolation of the truce section for the sound section, the load status of the connected line and substation, the characteristics of the operation switch and the breaker, the setting of the prevention of reclosing, the power truce due to the connection between the lines and the substations Various reviews are needed.

According to the prior art Korean Patent Registration No. 10-1215595 (Dec. 18, 2012), which is partially overcome this necessity, the "system and method for the management of a cease-fire work by a distribution line" is based on the past monthly electricity consumption by season, A technology for calculating the load on the date of the cease-fire and setting up a backup line on the basis of the load, and examining the feasibility by simulation is disclosed.

However, in this conventional technique, a backup line to be used as a backup line is selected, and a simulation is performed to check the selected backup line. In this case, whether the backup line is a healthy area and the backup line is valid until the truce There is a problem that can not be determined.

Korean Patent Registration No. 10-1215595 (Dec. 18, 2012) 'System and method for management of truce work by distribution line'

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of managing a truce work in a distribution line construction that enables a stable and efficient truing operation by monitoring each section in real time using a terminal device constituting a mesh network I want to.

To this end, the present invention provides a method of managing a cease-fire operation in a distribution line construction for determining a backup line by communicating with a terminal device for managing and monitoring a switching device in a distribution route, A dormant period setting step of receiving a dormant period in which a work is performed and a scheduled date of execution of the dormant work, and storing the dormant period in the dormant period management unit; A load forecasting step of predicting a power usage amount of a scheduled work day by inputting a power interruption period and a scheduled antitheft day in the power load prediction unit and statistically counting the amount of power used in the past in the power interruption period; A backup line setting step of selecting a plurality of backup lines to supply power to the power saving period on the scheduled work day and setting a priority order on the selected plurality of backup lines; The mesh networking unit designes a mesh network having a plurality of the terminal devices installed along the backup line as a node and transmits an activation signal including a unique ID and an activation command of each of the terminal devices A mesh networking activation step of sequentially transmitting an activation command from one terminal device to another terminal device; The terminal device activated by the activation command among the terminal devices constituting the mesh network determines the section integrity of the distribution line to which the terminal device is in charge and transmits an activation command to the next terminal device when there is no abnormality, If it is determined that there is an active state, transmitting an abnormality occurrence response to the active state reading unit without transmitting an activation command to the next terminal device; When the active state reading unit receives a response from the last terminal device of the mesh network constituting the mesh network that the distribution line is sound, it is determined that all the terminal devices constituting the backup line are activated, A node activation review step of selecting a back-up backup line of the plurality of backup lines when the backup backup line is received; If the terminal devices constituting the selected mesh network of the selected backup line are activated, monitoring the interval integrity at each of the terminal devices activated until the anticipated execution date of the interruption work of the armored interval, and transmitting the monitoring result report to the mobility section management section A backup interval monitoring step of monitoring the backup interval; When the backup line activated by all the terminal devices is sound until the anticipated execution date of the antitheft operation according to the monitoring result report, the antitheft operation start signal is transmitted from the changeover / reduction instruction section, and the antitheft operation section is switched to the healthy backup line section A truce start step that continues to power the customer; When the end of the cease-fire operation is completed, a cease-and-desist operation termination signal is transmitted from the switchover / reduction command unit so as to restore the cease-fire line, and the backup line section is switched to the cease- step; And an activation termination step of receiving a termination end signal from the termination section management section in the mesh networking section and transmitting an inactive signal including an inactive command to the terminal device of the activated backup line to terminate the activation, .

As described above, according to the present invention, each section of the distribution line forming the backup section is monitored in real time until the scheduled work day by using a plurality of terminal devices provided in the distribution view, thereby enabling a stable and efficient interruption work.

In addition, the present invention configures a mesh network using the above-described terminal device, and monitors the backup line using the mesh network, thereby enabling monitoring of each section of the backup line.

1 is a schematic view showing a general distribution.
FIG. 2 is a configuration diagram illustrating a truant work management system applicable to the present invention.
FIG. 3 is a flowchart illustrating a method of managing a truant work according to the present invention.
4 is a diagram illustrating a backup line in a mesh network applicable to the present invention.
5 is a diagram illustrating a node activation procedure applicable to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the accompanying drawings, a method of managing an interruption work according to a preferred embodiment of the present invention will be described in detail.

First, Fig. 1 shows a general distribution scheme introduced in various documents including Korean Patent No. 10-1215595.

As shown in the figure, the power distribution system 400 is connected to the substation circuit breaker 410 of the substation, and includes a power line breaker 430, a power line switch 440, and a distribution line terminal device 450.

In addition, the substation terminal apparatus 420 may be installed in a substation, and each of these apparatuses may be operated automatically or manually, and may be branched in the line and connected to each other by a separate line.

As shown in FIG. 2, the dormant job management system 100 applicable to the present invention includes a dormant period management unit 110, a power load prediction unit 120, a backup line setting unit 130, a mesh networking A communication interface 170, a history recording unit 180, and a central processing unit 190. The operation unit 150 includes a display unit 140, an activation state reading unit 150, a changeover / return instruction unit 160, a communication interface 170,

The termination task management system applicable to the present invention further includes a terminal device T installed in the distribution network for managing and monitoring switches and the like in the distribution network 400. The terminal device T includes a substation terminal 400, A device 420 and a terminal device 450 for a distribution line, each of which is provided with at least one or more of them to constitute a mesh network.

The present invention having such a configuration replaces the truce period by a mesh network communication with a terminal device (T) that manages and monitors switching devices (e.g., switches, breakers, transfer switches, etc.) To determine a backup line to supply power to the mobile terminal and to enable a cease-fire operation.

For this purpose, the cease-fire section management unit 110 receives and stores a cease-fire period in which a cease-fire work is performed and an anticipated execution date of execution of a cease-fire work for a wiring line construction or the like from a person in charge or a responsible person. Also, a result of monitoring the integrity of the backup section from the terminal device T is received and stored.

The power load predicting unit 120 calculates the amount of power that is predicted to be used in the power interruption period on the scheduled work day, and analyzes the amount of power used in the past according to day, month, season, weekday / Predict.

The backup line setting unit 130 selects a plurality of backup lines to supply power in the power interruption period on the scheduled work day of the above-described hibernation period, and sets priority levels on the selected plurality of backup lines.

Therefore, the power to be supplied to the customer in the armistice period is replaced with the switching over in the backup line, thereby continuously supplying power to the customer and enabling the uninterruptible operation.

The above-described backup line is determined in consideration of the power supply capacity of the power cut-off period, and can use an inner loop, a connected line, and a connected line in which a sound load is switched as already known through a plurality of documents.

The mesh networking unit 140 designes a mesh network having a plurality of terminal devices T installed along the backup line as one node and transmits a unique ID and activation The command transmits an active signal.

Accordingly, one terminal device T sequentially transmits an activation command along with another terminal device T. For example, the first terminal device (T1) transmits an activation command to the second terminal device (T2), and the second terminal device (T2) transmits an activation command to the third terminal device (T3) An activation command is transmitted to the device Tn.

The active state reading unit 150 determines the periodic integrity of each section of the backup line using the process of sequentially transmitting the activation command between the terminal apparatuses T. At this time, the activation command is transmitted to the terminal device T of the next section only when the section monitored by the terminal device T is sound.

Accordingly, when an abnormality occurrence response is received from any one of the terminal devices T constituting the mesh network, there is a problem in power supply through the subsequent sections. Therefore, the number of backup lines set by the backup line setting unit 130 To select a back-up backup line.

On the other hand, when a response is received from the terminal device T constituting the mesh network to the distribution line from the last terminal device T, it is determined that all the terminal devices T constituting the backup line are activated.

Therefore, if all the terminal devices T are activated, the terminal health of each terminal device T activated until the anticipated execution date of the ceasefire operation is monitored and the monitoring result report is transmitted to the ceaseframe section management section 110, .

In accordance with the above-mentioned monitoring result report, the switching / reduction command unit 160 transmits a cease-and-desist operation start signal on the due date, thereby switching the cease-fire work interval to the healthy backup line interval. When the ceasefire work is completed, the ceasefire line is restored and a cease - and desist operation end signal is transmitted so that the reduction process is performed.

The cease-fire operation start signal and the cease-and-stay work end signal can automatically adjust the switching devices of the demilitarized line and the backup line through the terminal device T. However, for safety, it is transmitted to the mobile communication terminal of the worker, It is preferable that the operation is performed.

Meanwhile, the communication interface 170, which is not described above, is used for wired / wireless communication between the management server and the terminal device T or communication with the mobile communication terminal of the worker. The history logger 180 is a process of selecting a backup line, The mesh networking network configuration process of T and the abnormal occurrence of the backup period, and the central processing unit 190 processes the overall process of the present invention.

Hereinafter, with reference to the accompanying drawings, a method of managing a truant work according to the present invention will be described.

As shown in FIG. 3, a cease-fire operation management method in a distribution line construction includes a ceasefire interval setting step S110, a load estimation step S120, a backup line setting step S130, a mesh networking activation step S140, S150), a node activation review step S160, a backup interval monitoring step S170, a cease fire operation start step S180a, a cease fire work step S180b, and an activation end step S190.

In step S 110, the person in charge or the responsible person accesses the management server to input a power interruption period through which power is supplied through the power line, and a power interruption period in which the power interruption work is performed, And stores it in the management unit 110.

The ceasefire work means the construction of a distribution line that supplies power to the current customer. Construction of such a distribution line (ie, a demilitarized line) includes various reasons including new construction, expansion, replacement and replacement of old facilities.

Next, in the load predicting step S120, the power load predicting unit 120 receives the hibernation interval and the anticipated date of the hibernation work, and estimates the amount of electricity used in the anticipated work day by statistically counting the amount of electricity used in the past in the hibernation interval.

For example, the amount of power used in the past is analyzed by day, month, season, day / night, and time to predict power usage on the scheduled day. This analysis is performed automatically in the load estimation step (S120), and the past usage amount is calculated and calculated.

Next, in the backup line setting step (S130), the backup line setting unit 130 selects a plurality of backup lines to supply power in the power interruption period on the scheduled work day, and sets a priority order on the selected plurality of backup lines.

As shown in FIG. 4, a plurality of backup lines may be selected (for example, first backup line to third backup line) for replacing one dwelling period, and a plurality of terminal devices T may be connected to the mesh network .

As described above, the backup line is determined in consideration of the power supply capacity of the truce period, and the tie line in which the inner loop, the connected line, and the healthy load are switched can be used. The priority among the plurality of backup lines is set to be higher as the number of switching times and the number of terminal devices (T) is as small as possible, in consideration of the relationship with the peripheral load.

Next, in the mesh networking activation step S140, the mesh networking unit 140 designs a mesh network having a plurality of terminal devices T installed along the backup line as nodes.

After the mesh network is designed, an activation signal including an unique ID and an activation command of each terminal device T is transmitted to sequentially transmit an activation command along with the other terminal device T from one terminal device T .

That is, the first terminal device T1 transmits an activation command to the second terminal device T2, and the second terminal device T2 transmits an activation command to the third terminal device T3, An activation command is sequentially transmitted to the device Tn.

To this end, each terminal device T must have a routing function on a wireless communication line (here, also referred to as a wired communication line), and the mesh networking unit 140 stacks each unique ID, And transmits an activation command to the first terminal device T1, which is the first terminal device.

Next, in the section integrity determination step S150, the terminal device T activated by the activation command among the terminal devices T constituting the mesh network as described above determines the section integrity of the distribution line to which the terminal device T itself is assigned.

Therefore, when there is no abnormality in the specific terminal device T, the activation command is transmitted to the next terminal device T. On the other hand, if there is an abnormality, the activation command is not transmitted to the next terminal device T And transmits an abnormality occurrence response to the state reading section 150. [

Since the terminal T transmits an activation command to the next terminal T through activation, the link is completed only when all the terminals T in the backup line are normal. After activation, Monitor the integrity of the interval of the monitoring interval.

Next, in the node activation review step S160, if the active state reading unit 150 receives a response from the last terminal device T among the terminal devices T constituting the mesh network to the distribution line to be sound, It is judged that all the terminal devices T constituting are activated.

On the other hand, when receiving an abnormality occurrence response from a specific terminal device T, a backup line of a lower rank among a plurality of backup lines set by the backup line setting unit 130 is selected.

Since the power supply is interrupted after the terminal device (T) that sends out the abnormal response when the line is switched to the backup line, it is impossible to perform the uninterruptible operation, so that the above process is repeated by selecting the subordinate backup line.

For example, as shown in (a) of FIG. 5, the fourth terminal device T4 of the seventh terminal device T constituting the first backup line is activated, and the fifth terminal device T5 is not activated It is determined that there is a problem with power supply from the section of the fifth terminal device T5 and the second backup line is selected.

On the other hand, if activation is performed from the first terminal device T1 to the seventh terminal device T7 constituting the first backup line as shown in FIG. 5 (b), the periodicity of the entire section of the first backup line It is judged to be good, and the first backup line is selected as the transfer interval as planned.

Next, in the backup interval monitoring step S170, when all the terminal devices T constituting the mesh network of the backup line are activated, the interval health of each terminal device T activated until the anticipation of the execution of the interruption work of the interruption period And transmits a monitoring result report to the dormant section management unit 110. [

Therefore, even if the environment of the backup line varies between the time when the backup line is selected and the date when the armistice is scheduled to be interrupted, the backup line is continuously monitored to solve the problem.

The continuous monitoring of the backup line is a function according to the activation of the above-described terminal device T. If an abnormality occurs during this period (S170a), as described above, You will choose a track.

Next, in the start of the cease-fire operation (S180a), when the backup line on which all the terminal devices T have been activated according to the monitoring result report is sound until the anticipated execution date of the ceasefire operation, the transition / reduction command section 160 transmits a cease- . Thus, the ceasefire operation section is switched to a healthy backup line section to continuously supply power to the customer. That is, the work of the uninterruptible arm-off interval is performed.

Next, in the end of the cease-fire work (S180b), when the worker completes the cease-fire work, the arm / rest command unit 160 transmits a cease-fire task end signal so that the arm-off line is restored and the reduction process is performed. Normally, the reduction procedure is performed in the reverse order to the cease-fire procedure.

However, the cease-fire operation start signal and the cease-fire operation end signal are transmitted to the terminal device T to automatically adjust the switching devices of the emergency line and the backup line. However, in order to ensure safety, the signal is transmitted to the mobile communication terminal of the worker, It is desirable to manually perform the switching operation.

Next, in the activation termination step S190, the mesh networking unit 140 receives a cease-and-work end signal from the cease-fire management unit 110 and transmits an inactive signal including a deactivation command to the terminal device T of the activated backup line To terminate the activation.

Through the deactivation, the connection between each of the terminal devices T constituting the backup line is cut off, the mesh network is released, the terminal device T stops the monitoring function performed during the interruption work, and the generation of the monitoring result report And transmission is also suspended.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the scope and spirit of the present invention is not limited to these specific embodiments, and that various modifications and changes may be made without departing from the spirit of the present invention. If you have, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

110:
120: Power load predicting unit
130: backup line setting unit
140: mesh networking unit
150: Activation status reading section
160: Transfer / Reduction Command Unit
170: Communication interface
180:
190: central processing unit
T (T1 to Tn): Terminal devices 420 and 450,

Claims (1)

The dormant work management system 100 includes a dormant section management section 110, a power load prediction section 120, a backup line setting section 130, a mesh networking section 140, an activation status reading section 150 A switching device including a switch in the power distribution system 400 and a breaker and a switching switch including a transmission / reduction command unit 160, a communication interface 170, a history recording unit 180, and a central processing unit 190 And the terminal device T includes a substation terminal device 420 and a terminal device for a power line 450 and each of the substation terminal devices 420 is provided with at least one A mesh network is constructed,
The dormant section management section 110 receives and stores a dormant section and a due date for execution of the dormant work,
The power load predicting unit 120 calculates the amount of power to be used in the power interruption period,
The backup line setting unit 130 selects a plurality of backup lines to supply power in the power cut-off period,
The mesh networking unit 140 constitutes a mesh network for transmitting an activation command to each of the plurality of terminal devices T by transmitting respective unique IDs,
The activation status reading unit 150 determines the interval integrity for each section of the backup line,
The switching / reduction command unit 160 transmits a cease-and-work end signal and a cease-and-work end signal to the terminal device T,
The communication interface 170 transmits a wired / wireless communication signal between the management server and the terminal device T and a communication signal of the operator's mobile communication terminal,
The history recording unit 180 records the backup line selection, the mesh networking network configuration of the terminal device T, and the abnormal occurrence of the backup period,
The central processing unit 190 is implemented by the cease-fire management system 100 that processes the overall process,
A method for management of a truce work in construction of a distribution line to determine a backup line by a mesh network communication with a terminal device (T) for managing and monitoring a switching device in a distribution route,
A sleep interval setting step (S110) for receiving a sleep interval during which a cease-fire operation is performed and a scheduled sleep period during which the cease-fire is to be performed, and storing the sleep interval in the sleep interval management unit (110);
A load prediction step (S120) of predicting a power usage amount of a work scheduled to be performed by the power load predicting unit (120) by statistically counting the amount of power used in the past in the power saving period,
A backup line setting step (S130) of selecting a plurality of backup lines to supply power to the power saving period on the scheduled work day in the backup line setting unit (130) and setting priorities on the selected plurality of backup lines;
The mesh networking unit 140 may design a mesh network having a plurality of the terminal devices T installed along the backup line as a node, A mesh networking activation step (S140) of sequentially transmitting an activation command from one terminal device (T) to another terminal device (T) by transmitting an activation signal including an instruction;
The terminal device T activated by the activation command among the terminal devices T constituting the mesh network determines the section integrity of the distribution line to which the terminal device T is activated, (S150) of transmitting an activation command to the active state reading unit (150) without transmitting an activation command to the next terminal device (T) if there is an error;
When the active state reading unit 150 receives a response from the last terminal device T of the terminal devices T constituting the mesh network to the distribution line to be healthy, all the terminal devices T constituting the backup line, (S160) of selecting a back-up line of the plurality of backup lines when it is determined that the backup line is activated;
If the terminal devices T constituting the selected mesh network of the selected backup line are activated, monitoring the interval integrity at each of the terminal devices T activated until the anticipation of execution of the armistice in the armistice period, To the dormant period management unit 110 (S170);
When the backup line activated by all of the terminal devices T is healthy until the anticipated execution date of the antitheft operation according to the monitoring result report, the switching / redirection command section 160 transmits the antitheft operation start signal, (S180a) of starting a cease-fire operation to switch to the backup line section to continuously supply power to the customer;
Upon completion of the cease-and-desist operation, the shutdown / redirection command unit 160 transmits a cease-and-work end signal to the shutdown section so that the shutdown period is restored and the reduction process is performed, and the backup line section is switched to the shutdown period A cease-fire work ending step (S180b); And
The mesh networking unit 140 receives the cease-and-work end signal from the cease-and-fire section management unit 110 and transmits an inactive signal including a deactivation command to the terminal device T of the activated backup line to terminate the activation (S190). The method of claim 1, further comprising:

Images