JP4274992B2 - Distribution automation system and power outage construction management method - Google Patents

Description

  The present invention mainly relates to a method for preventing erroneous operation of a power distribution automation system, and in particular, a power distribution automation system and a power failure construction management method for preventing accidents such as electric shock and equipment damage due to erroneous power transmission to a section where power failure work is being performed. About.

  Conventionally, in the control of the distribution system, the distribution automation system (hereinafter referred to as the system) installed at each sales office monitors whether there is a power failure in the high-voltage distribution line, and turns on / off the automatic switch installed on the same line. Control is being performed. Normally, system switching operation during planned power outage work (work involving power outage) and operation to automatically disconnect the fault section in the event of a distribution line accident, the system calculates the operation procedure of the automatic switch Is output. (For example, see Patent Document 1).

On the other hand, if the failure section cannot be determined during a sudden power outage or distribution line accident that has not been reserved for construction, the system does not automatically create an operation procedure and should be operated on the screen of the distribution automation system. While checking the automatic switch, the operator judged it by himself and selected the automatic switch to perform the on / off operation.
Japanese Patent No. 3178063

  For this reason, when the power distribution system is complicated, the operator may accidentally select and operate another switch to transmit power to the section where the power outage work is performed, which may cause an electric shock accident or damage to the equipment. There is. In addition, even in the case of planned power outage work, work will be started in a careful meeting prior to the work, but work will be carried out in an area or time zone that is different from the planned work area due to mistakes or misunderstandings by local workers. There is also a potential danger. In addition, a human error such as an input error of construction information to the system is also assumed.

  This invention is made | formed in view of the above-mentioned situation, and it aims at providing the power distribution automation system and power failure construction management method which can prevent the accident at the time of performing a power failure construction beforehand.

  The power distribution automation system according to the present invention is a power distribution automation system that transmits an operation command to a switch during a power outage work, and stores the work section and interlock information that prohibits the switch on operation. Interlock condition registration means, construction section input means for inputting construction section information to the distribution system diagram, and entry operation to the switch corresponding to the inputted construction section is prohibited based on the interlock information And a construction information output means for displaying a power outage section under construction on the distribution system diagram.

  Based on the interlock information, the switching operation of the switch is prohibited and the construction section is input and the power outage section is displayed using the power distribution system diagram, so that erroneous operations due to human errors can be reduced.

  Preferably, the interlock condition registration means further stores construction subject information in association with each other, the construction section input means inputs construction subject information as construction section information, and the switch distance control means includes the construction section information. It is preferable to extract the construction section based on the construction subject information input by the input means and prohibit the operation of turning on the corresponding switch.

  As a result, the construction section switches can be interlocked with the construction subject, so that operation errors can be reduced.

  The “construction subject information” means information that can widely identify construction, such as the construction subject itself, numbers and symbols corresponding to the construction subject. “Power outage” includes not only power outages throughout the section but also part of the power outages.

  Further, the construction information output means displays the switch section corresponding to the construction section on the distribution system diagram, or is a switch in the off state and transmits power to the power outage section by turning on the switch. When selecting the switch to be switched, the section to be transmitted after the turning-on operation is identified and displayed on the distribution system diagram before the operation, so that the operator can display the status and section of the switch displayed on the distribution system diagram. Therefore, it is possible to check the state of the power transmission state and to perform an operation, so that it is possible to prevent a situation where power is erroneously transmitted to the construction section.

  The construction information output means is an on-state switch, and when the switch that cuts off a section by turning off the switch is selected, the section that is cut off after turning off is selected before the operation. In addition, an identification display may be made on the distribution system diagram.

  Thereby, the unexpected power failure of the area can be avoided. In particular, each section information is provided with means for storing incidental information including customer information such as telephone pole numbers belonging to the section, transformers, switches, and high voltage consumers, and the construction information output means operates the switches By identifying and displaying the section where the power outage and power transmission state change, displaying the incidental information of the section, and confirming the equipment and customers in that section, and performing the operation of power transmission or power outage it can.

  More preferably, it comprises means for storing switch information that may be broken due to a distribution line accident and the state of the switch as an on state, and the construction information output means includes the switch that may be broken and It is preferable to identify and display a section in which power can be transmitted by the switch.

  As a result, it is possible to avoid a situation where power is transmitted to a section where power transmission should not be performed, and it is also possible to make a local worker confirm a switch with a possibility of failure.

  The distribution automation system of the present invention is a distribution automation system that transmits an operation command to a switch during a power outage construction, and stores a range of position information to which equipment in the section belongs for each section, The construction section input means for inputting the section information, the position information input means for inputting the position information of the local worker, and the position information input by the position information input means are included in the position information range of the construction section. And a judging means for outputting a caution message when it is not included.

  By determining whether or not the local worker is within the construction section, it is possible to prevent an accident caused by working in a location different from the original planned location due to misunderstanding of the local worker.

  Preferably, when a section close to the position of the local worker is extracted and power is transmitted to the section by operating the switch, a caution display is performed when the switch is selected. As a result, it is possible to prevent an accident caused by a local worker entering the adjacent section by mistake.

  In addition, the power failure work management method according to the present invention is a power failure control method in which construction information sent from a portable terminal of a local worker is input to a server, and the switch that controls power transmission to the construction section using the construction information is controlled. In the construction management method, the server stores a location range to which equipment of the section belongs for each section, stores the construction section in association with construction subject information, and is sent from the portable terminal A step of inputting construction subject information and location information of the local worker, a construction section is extracted based on the inputted construction subject information, and whether or not the location of the local worker is included in the construction section location range. And a step of outputting a caution message if it is not included.

  According to the present invention, it is determined whether or not the local worker is in the planned construction section based on the position information sent through the portable terminal of the local worker.

  In addition, the power failure work management method according to the present invention is a power failure control method in which construction information sent from a portable terminal of a local worker is input to a server, and the switch that controls power transmission to the construction section using the construction information is controlled. In the construction management method, the server stores, for each section, a position range to which the equipment in the section belongs, and stores construction section information in association with construction subject information, and is sent from the portable terminal Entering the construction subject information and the location information of the local worker, and extracting the construction section information based on the inputted construction subject information, so that the location of the local worker is within the position range of the sections other than the construction section. Determining whether it is included, and outputting a caution message if it is included.

  In the present invention, it is possible to avoid a situation in which a local worker accidentally touches equipment in another section and causes an accident, particularly when sections are close or overlapping.

Preferably, when the caution message is output, a step of permitting control of the switch by a confirmation input for the message may be included.
Accidents can be prevented by making the switch inoperable during the unconfirmed period so that the switch cannot be operated.

  More preferably, the position error information is stored in association with the portable terminal, and the position of the local worker is determined using the position information and the error information sent from the portable terminal.

  Since there are various types of terminals such as mobile terminals that specify the position by the GPS function and mobile terminals that specify the position by the base station, the error of the collected location information differs, so the error is stored for each mobile terminal of the local worker. The position is determined in consideration of the error. As a result, it is possible to determine the accurate position information with higher accuracy as compared with the case where the same error is determined.

  ADVANTAGE OF THE INVENTION According to this invention, the electric shock accident and damage of an apparatus by the human error of the operator at the time of a power failure construction or a local worker can be prevented.

  Hereinafter, a first embodiment of the present invention will be described. FIG. 1 is a block diagram of a power distribution automation system 1 according to the present embodiment. Here, the distribution automation system 1 performs a server 4 for executing monitoring control of a switch of a distribution system, a display output process, a man-machine apparatus 6 for displaying setting data and a distribution system diagram, and inputting data. An input device 9 is provided. The server 4 includes a control unit 2 that executes arithmetic processing and a storage unit 3 that stores data. The man-machine device 6 includes a setting list display unit 7 that displays a list of data such as set construction (work) information, a distribution system diagram display unit 8 that displays a distribution system diagram and a map, and an audio output device 12. I have.

  Further, the server 4 can be operated and output to the remote control switch which is the slave station via the remote monitoring control device master station 11 and can be connected to the map information system 10 to acquire the map information and output it to the man-machine device 6. It has become.

  The storage section 3 of the distribution automation system 1 stores a construction section setting table shown in FIG.

  Here, the construction section setting table stores information such as establishment name and registration date, as well as information on the power station substation feeder name, power outage period, power outage section, operation prohibited switch, scheduled operation start date and time, and the like. As for operation prohibited switch information, it is assumed that when a switch operating procedure is created in advance, a construction section is set for a construction section scheduled for a power outage and an operation prohibited switch is registered.

  The contents of the construction section setting table are displayed on the setting list display unit 7, and new construction information can be input through the display unit 7.

  An example of the construction section setting screen is shown in FIG. When a section set on the system diagram is selected, a construction section setting dialog box is displayed. By pressing a setting button, the selected section is registered as a construction section.

  The operation of the distribution automation system 1 configured as described above will be described with reference to the flowchart of FIG. This operation is executed as a function of the control unit.

It is determined whether or not there is a switch operation procedure (S101). If “Yes”, as an automatic execution process, first, the automatic operation of the system is performed by the switch operation procedure corresponding to the construction title stored in the system 1. Switching is performed (S102), and the construction section is brought into a power failure state (S103). Also, this power failure section is interlocked based on the operation prohibition switch information in the construction section setting table, and a display output indicating that it is a construction section is displayed in the corresponding section of the system diagram. The construction section is automatically set by registration in the construction section list and voice output (S104).

  In other words, the operation procedure for powering off the section including the construction section and the range of the construction section are set in advance using the switch operation procedure of the construction subject, and the operation procedure for powering off the section including the construction section is first executed from the setting information. The construction section is automatically set after the section is blacked out.

  On the other hand, if “No” in step S101, that is, in the case of emergency construction or distribution line accident, the operator selects an operation switch from the system diagram of the system, and the selection information is input to the system. (S105). In the case of a distribution line accident, the control unit automatically determines the failure section, operates the switch, disconnects the failure section from the healthy section, and causes the failure section to power out. And the control part 2 performs the blink display of the area from which a state changes based on the equipment information file shown in FIG. 5, and the map display of an applicable switch vicinity (S106). The operator individually operates the distance control switch while confirming the status of the power distribution system after the operation on the flicker display of the power distribution system diagram display unit 8, and the operation information is input to the system (S107). Then, it is determined whether or not the construction section has a power failure, and is executed for all the switches to be operated (S108, S109).

  In addition, since the system cannot automatically set the construction section in individual operation, the operator manually presses the new registration button from the construction section list in the setting list display section and selects the corresponding section in the distribution system diagram. Then, the construction section is set and the operation of the switch for transmitting power to this section is prohibited (S110).

After that, when a power outage work is performed (S111) and a notification of the completion of the work is received (S112), the system operator selects a corresponding work section from the work section list in the setting list display section 7, and a distribution system diagram of that section. And the map is canceled while displaying the map around it and confirming it (S113). As a result, the interlock is released.
Next, in the case of automatic execution (“Yes” in step S114), switching to the normal switch state of the distribution system is performed by the switch operation procedure of the system construction subject (S115).

  On the other hand, in the case of individual operation (“No” in step S114), when an operation switch is selected from the system diagram of the system (S116), the flashing display of the section whose state is changed by the control unit 2 and the vicinity of the corresponding switch A map display is performed (S117). The operator individually operates the distance control switch while confirming the status of the distribution system after the operation on the flicker display on the distribution system diagram display unit 8, and the operation information is input to the system (S118). The processing from step S116 to step S118 is repeated for all the switches to be operated (S108, S119).

Here, the display on the distribution system diagram display section when the construction section is set in step S104 or step S110 is as shown in FIG.
That is, the distribution system diagram display unit displays a construction section with respect to the system diagram, and the switches 2a and 3a on both sides of the construction section A are in a cut-off state. At this time, the switch 2a or 3a cannot be operated by the interlock function. This interlock is released by inputting the work section setting cancellation in step S113.

  FIG. 7 is an example of a system diagram displayed on the power distribution system diagram display unit. Here, the switch for transmitting power to the construction section is in an operation-prohibited state and is identified and displayed. In addition, the interlock state of each switch can be displayed. Note that the section under construction is identified and displayed on the system screen by selecting a setting button in the construction section setting window of FIG. FIG. 8 shows an example of this display. In the figure, the shaded area is under construction.

  When the construction section is not set, the color of the switch changes when the switch is selected as shown in FIG. 9, and the section connected to the switch blinks by referring to the equipment information file of FIG. Is displayed.

  According to the present embodiment, in the case of unscheduled power outage work such as failure recovery by operation of the distribution automation system, power transmission to the construction section is prohibited by the interlock by setting the construction section. In this way, it is possible to prevent electric shock and damage to the equipment.

  In the case of planned construction, the switch operation procedure is calculated and registered in advance by the distribution automation system, so the system automatically operates the switch for power outage work, and the power outage scheduled section is Since the setting during construction is automatically performed and the interlock is applied, the operation to be set every construction can be omitted, and labor can be reduced and the occurrence of human error can be prevented.

  Even if the operator of the distribution automation system changes during the process, the section under construction can be confirmed from the list on the screen of the system, it can be easily taken over, and even if a wrong operation is performed by mistake. The operator cannot ensure the safety of local workers because the switch cannot be operated to transmit power to the construction section.

  When power is transmitted to a power outage location or when operating a switch that causes a power outage, if the corresponding switch is selected on the power distribution system diagram of the distribution automation system, the section of the switch that performs power transmission or power outage after the operation flashes on the system diagram Since it is displayed, the operator's attention can be alerted.

  In addition, when a switch to be operated is selected on the system screen, a map showing the power pole number, transformer, switch, high voltage consumer location and power outage in the vicinity is displayed in a pop-up. Can be easily confirmed.

  In addition, because the construction setting location is managed in the system screen list, when canceling the setting, select the subject without searching the setting location on the system diagram, and jump to the corresponding location in the distribution system diagram. The release location can be confirmed. At this time, a link between the facility information of the section and the map information may be taken to display a nearby map so that confirmation can be performed.

  Next, a second embodiment of the present invention will be described. FIG. 10 is a functional block diagram of a power distribution automation system according to the second embodiment. Here, the basic configuration of the distribution automation system 1 is the same as that in FIG. 1, but in the present embodiment, the distribution automation system 1 is connected to the portable terminal 52 of the local worker via the communication network 51. Further, the power distribution automation system 1 is provided with a communication unit 13 for communicating with the portable terminal 52 and a communication unit 14 for communicating with the distance control switch via the master station. Further, the control unit 2 includes a transmission / reception processing unit (function) 21 for performing data communication via the communication unit 13 or 14, and an input / output processing unit (input / output processing unit for inputting / outputting data to / from the input device 9 or the man-machine device 6). Function) 22, interlock condition registration means (function) 23 for registering the interlock information of the switch, construction section input means (function) 24 for setting the construction section, and position information for inputting the position information of the local worker Input means (function) 25, determination means (function) 26 for determining whether or not a local worker is within a predetermined range based on position information, switch distance control means (function) for transmitting a switch on / off command 27, and a construction information output means (function) 28 for displaying a distribution system diagram and a power outage section under construction on the man-machine device 6.

  The storage unit 3 also includes an equipment information file 31 for storing equipment information of the power distribution system, an interlock condition file 32 for storing information such as a construction section and a switch to be operated, a construction date and time, a construction section, and the like. A construction information file 33 for storing information and a section position range file 34 for storing a position range for each section are provided.

  In the equipment information file 31, as shown in FIG. 5, for each switch identification number, for example, remote control (distance control) type or manual type, or type information such as linkage or classification, it is connected to the switch. Information such as a distribution line classification identification number and a flag indicating whether or not the switch is turned on or off or interlocking is stored.

  Further, the section position range file 34 is a file in which range information of the geographical position is stored for each section divided by a switch as shown in FIG. For example, the arrangement of the actual facilities is dispersed as shown in FIG. The section position range indicates the geographical range of the equipment for each section. For example, it is surrounded by a dashed-dotted line so as to include the section C82 and the switches S62 and S71 at both ends thereof, and the coordinates of its lower left (position X) (133 ° 30'26.7 ″ east longitude, 35 ° 25′16 north latitude) .8 ″) and upper right (position Y) coordinates (east longitude 133 ° 30′28.3 ″, north latitude 35 ° 25′18.1 ″) are stored as position range information. Similarly, the position range of the section divided by other switches is stored.

In the above configuration, the operation of the distribution automation system 1 will be described.
First, on / off information of the distance control switch for each construction section is registered in advance from the input device 9. This information is stored in the interlock condition file 32 of the storage unit 3 by the interlock condition registration means 23. FIG. 13 is an example of an interlock condition file. The construction section is stored in units of the minimum section that can be classified by the switch, and when spanning multiple sections of the construction section image, if the distance control switch is turned off under that OR condition, the construction section will be securely constructed. The section can be in a power outage state. In order to keep the power outage section in the minimum range, the downstream system in the power outage section is provided with a distance linkage switch to supply power from another system.

  The construction information is input from the input device 9 and written into the construction information file 33 by the construction section input means 24. FIG. 14 is an example of a construction information file. Information such as power outage sections, feeders, and scheduled power outages are stored for each construction subject.

  The operation of the switch during the power outage work is performed according to the procedure of FIG. 4 described in the first embodiment. An operation command to the switch is sent from the switch distance control means 27. At this time, at the start of the power outage construction in step S111, the local worker's portable terminal 52 notifies the construction start. This communication is performed by inputting the construction subject to the portable terminal 52. In addition, instead of inputting the construction subject directly by the local worker, the construction subject not yet implemented on that day registered in the construction information file 33 may be displayed on the portable terminal 52 and selected from among them. Good.

The location information of the portable terminal 51 is sent together with the transmission of the construction subject, and is stored in the construction information file 33 of the storage unit 3 by the location information input means 25.
Then, the determination unit 26 refers to the section position file 34 and determines whether or not the acquired position information of the local worker is included in the position range of the power outage section corresponding to the construction title.

Hereinafter, a detailed processing procedure of the determination unit 26 will be described with reference to FIG.
The determination means 26 is activated when the position information input means 25 completes receiving position information from the local worker. When activated, it is first determined whether or not it is within a predetermined range of the scheduled time (S201). If it is outside the scheduled time, a time abnormality flag is set (S202). Next, the construction section is extracted by referring to the construction information file 33 from the received construction subject, and then the position range data is extracted by referring to the section position range file 34 (S203). Then, it is determined whether or not the position of the local worker is included in the range of the position range data (S204). If not included, the position information abnormality flag is set (S205).

  Next, if either the time abnormality flag or the position information abnormality flag is set (S206), a caution message is transmitted to the portable terminal 52 and a caution display is displayed on the man-machine device 6 (S208). If there is no abnormality in any of the flags, a work permission notification is transmitted to the portable terminal 52 (S207).

This collection of position information is periodically performed until a notification of the end of work is received, and it is monitored whether or not the local worker is not in an unscheduled section.
Then, at the end of the power outage construction in step S112, the mobile terminal 52 notifies the end.

  Even if the sections are different, there may be sections that are geographically close to each other. The position range information of the section is set with a certain margin in consideration of the positioning error of the mobile terminal, but it is determined whether the position of the local worker is also included in the position range of other sections If it is also included in a section, a command may be issued to the switch distance control means 27 so as to prohibit the on / off operation of the switch in that section.

  According to the present embodiment, the location information is acquired when the construction worker starts to contact the local worker, and it is determined whether or not he / she is in the planned construction section. Accidents due to human errors such as can be prevented.

  In addition, this invention is not limited to embodiment mentioned above, In the range which does not deviate from the summary, it can implement in various deformation | transformation. For example, the section position range file 34 may store position range information for each section of the distance control switch as illustrated in FIG.

  In addition, it is obvious that the power outage construction management method described above can be applied to other power distribution systems as long as it requires construction of power facilities such as railway construction.

1 is a block diagram of a power distribution automation system 1 according to a first embodiment of the present invention. It is explanatory drawing of the data structure of the construction area setting table concerning the 1st Embodiment of this invention. It is an example of the construction area setting screen concerning the 1st Embodiment of this invention. It is a flowchart of the power failure construction process performed by the control part of FIG. It is explanatory drawing of the data structure of the equipment information file concerning embodiment of this invention. It is explanatory drawing of the example of a display to the distribution system diagram display part 8 when the setting of a construction area is performed. It is an example of the system diagram displayed on the power distribution system diagram display part 8. FIG. It is an example of the section display screen under construction concerning the 1st Embodiment of this invention. It is explanatory drawing of the example of a display to the distribution system diagram display part 8 when not setting a construction area. It is a functional block diagram of the distribution automation system concerning the 2nd Embodiment of this invention. It is explanatory drawing of the data structure of the area position range file of FIG. It is explanatory drawing of the position range of an area. It is explanatory drawing of the data structure of the interlock condition file 32 of FIG. It is explanatory drawing of the data structure of the construction information file 33 of FIG. It is a flowchart of the process sequence of the determination means 26 of FIG. It is explanatory drawing of the position range of the area by a method different from FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Distribution automation system 2 Control part 3 Memory | storage part 4 Server 5 Data transmission part 6 Man-machine apparatus 7 Setting list display part 8 Distribution system diagram display part (including map display)
DESCRIPTION OF SYMBOLS 9 Input device 10 Map information system 11 Master station 12 Voice output device 13, 14 Communication part 21 Transmission / reception processing means 22 Input / output processing means 23 Interlock condition registration means 24 Construction section input means 25 Position information input means 26 Judgment means 27 Switch Distance control means 28 Construction information output means 31 Equipment information file 32 Interlock condition file 33 Construction information file 34 Section position range file 51 Communication network 52 Mobile terminal

Claims (7)

A power distribution automation system that sends operation instructions to the switch during power outage work,
Interlock condition registration means for associating and saving the construction section and the interlock information prohibiting the switching operation of the switch;
Means for storing switch information that may be broken due to a distribution line accident and the state of the switch as an on state,
Construction section input means for inputting construction section information to the distribution system diagram;
Based on the interlock information, the switch distance control means for prohibiting the entry operation to the switch corresponding to the input construction section information,
Construction information output means for displaying a power outage section under construction on the distribution system diagram;
Equipped with a,
The distribution information automation system characterized in that the construction information output means identifies and displays the switch with the possibility of failure and the section with the possibility of power transmission by the switch . A power distribution automation system that sends operation instructions to the switch during power outage work,
Means for storing a range of position information to which equipment of the section belongs for each section;
Construction section input means for inputting construction section information;
Position information input means for inputting the position information of the local worker;
Determining whether the position information input by the position information input means is included in a range of the position information of the construction section, and if not included, a determination means for outputting a caution message;
Power distribution automation system characterized by comprising The extracting section close to the local operator's position, if will be transmitting to the section by operating the switchgear, according to claim 2, characterized in that to perform warning display when selecting the switch The described distribution automation system. A power outage construction management method for controlling a switch that inputs construction information sent from a mobile terminal of a local worker to a server and transmits power to the construction section using the construction information,
The server stores, for each section, a position range to which equipment in the section belongs, and stores construction section information in association with construction subject information;
Inputting the construction subject information sent from the mobile terminal and the location information of the local worker;
The construction section information is extracted based on the inputted construction subject information, and it is determined whether or not the position of the local worker is included in the position range of the construction section. Output step;
Power outage construction management method characterized by including. A power outage construction management method for controlling a switch that inputs construction information sent from a mobile terminal of a local worker to a server and transmits power to the construction section using the construction information,
The server stores, for each section, a position range to which equipment in the section belongs, and stores construction section information in association with construction subject information;
Inputting the construction subject information sent from the mobile terminal and the location information of the local worker;
If the construction section information is extracted based on the inputted construction subject information, it is determined whether or not the position of the local worker is included in the position range of the section other than the construction section. A step to output a caution message;
Power outage construction management method characterized by including. Wherein when the warning message is output, by the confirmation input for the message, according to claim 4 or 5 outage work management method according to, characterized in that it comprises a step of permitting the control of the switch. In association with the mobile terminal saves the error information on the position, the using the position information sent from the mobile terminal and the error information, to 4 claims, characterized in that to determine the position of the local operator 6 Power outage construction method as described in any one of.