JP2012069075A - Monitoring control switching method - Google Patents

Abstract

An information collection / delivery device setting can be changed while performing remote monitoring control.
When a field device 4 is connected to a channel 101A and the field device 4 is monitored and controlled via a channel 101A from a supervisory control terminal 8A, the field device 4 is connected to a telecon interface 11B and used for backup. The field device 4 is monitored and controlled from the monitoring control terminal 7 through the telecon interface 11. The channel 101C is attached to the slot, the monitoring control terminal 8A and the channel 101C are set so that the monitoring control terminal 8A can monitor and control the field device 4 via the channel 101C, the field device 4 is connected to the channel 101C, and monitoring control is performed. The field device 4 is controlled from the apparatus 8A through the channel 101C.
[Selection] Figure 1

Description

  The present invention relates to a monitoring control switching method.

  Conventionally, information on electric stations is transmitted from a remote monitoring and control device (TC) to a monitoring and control device in a remote location (such as a control station or a sales office) via an information collection and distribution device (DX) at a control relay station. As a transmission method, a cyclic transmission method, an HDLC transmission method, and the like are known. In the information collection / delivery device (DX), a board corresponding to this transmission method is provided for each remote monitoring control device (TC). In Patent Document 1, transmission conversion is performed when the transmission method from the remote monitoring and control device (TC) to the information collection and distribution device (DX) is different from the transmission method from the information collection and distribution device (DX) to the monitoring and control device. By converting the data by the device, it is possible to use a remote monitoring control device (TC) and a monitoring control device of different transmission methods in combination.

Japanese Patent No. 3863119

  By the way, a remote monitoring control device may be newly installed or replaced due to a new establishment of an electric station or a change of equipment in the electric station. At this time, the information collection / delivery device (DX) at the control relay station needs to add or replace boards.

  However, the information collection / delivery device (DX) manages a predetermined number of substrates as one unit. Only the substrates corresponding to the same transmission method can be mounted on the same unit, and substrates of different transmission methods cannot be mixed. For example, when a new HDLC board is to be installed, even if there is an empty slot in the unit corresponding to the cyclic method in the information collection and distribution device (DX), there is no empty slot in the unit corresponding to the HDLC method. Can happen. In this case, boards with different transmission systems cannot be mixed in the same unit, so the board mounted in one cyclic system unit is moved to another cyclic system unit, and the empty unit is replaced. It is possible to replace the HDLC unit and mount a new HDLC substrate on the HDLC unit. If an attempt is made to transfer a substrate from one unit to another unit, it becomes impossible to transmit information from the remote monitoring control device (TC) when the substrate is removed, and monitoring control from a remote location becomes impossible. In this case, it is necessary to dispatch a worker to the electric station and perform manual monitoring and control, which takes time and effort.

  The present invention has been made in view of such a background, and an object of the present invention is to provide a monitoring control switching method capable of changing settings of an information collection / distribution apparatus while performing remote monitoring control.

  A main invention of the present invention for solving the above problems is a control system in which a control relay device is arranged between an electric device and a control terminal, and the electric device is controlled from the control terminal via the control relay device. A method of switching a board for electrically connecting the electrical device and the control terminal, wherein the control relay device includes a plurality of slots for mounting the board, and the control terminal is connected to the control relay device. The first board connected to the first control terminal is attached to the first slot, and the second control terminal is connected to the interface. The electrical device is connected to the first board, and the electrical equipment is controlled from the first control terminal via the first board. A first board is connected to the interface, the electrical device is controlled from the second control terminal via the interface, and the second board connected to the first control terminal is defined as the first slot. The first control terminal and the second board are set so that the first control terminal can control the electric device via the second board, and the first control terminal and the second board are set. A device is connected to the second substrate, and the electric device is controlled from the first control device via the second substrate.

  The first control terminal is, for example, a monitoring control terminal 8A installed in a control station 3 described later, and the second control terminal is a monitoring control terminal 7 set in, for example, a control relay station 2 described later. .

  According to the substrate switching method of the present invention, it is possible to attach a new substrate to the slot and connect the first control terminal while controlling the electrical device by the second control terminal. This makes it possible to replace the board at the control relay station and move to a different slot without interrupting remote control.

  In the substrate switching method of the present invention, the second substrate is attached to the second slot, and the third substrate connected to a third control terminal is attached to the third slot, After setting the second substrate, the electric device is connected to the third substrate, and the electric device is controlled via the third substrate from the third control device. You may make it connect with a 2nd board | substrate.

  In the board switching method of the present invention, the electrical device is installed in an electrical station, the control relay device and the second control terminal are installed in a control relay station, and the first control terminal is installed in a control station and You may make it install in the place different from the said electric station and the said control relay station including a sales office.

  In the substrate switching method of the present invention, the first substrate is attached to the first slot, and the third substrate connected to the third control terminal is attached to the third slot. The electrical device is connected to a device-side switch capable of selectively connecting the electrical device to at least one of the first and second connection destinations, and the control relay device is connected to the fourth slot. , First to fourth switches corresponding to the first to fourth slots, respectively, and the first switch is connected to the device side switch as the first connection destination, and the device side switch Is connected to the first substrate and the interface so that the third switch can be selectively connected to at least one of the first substrate and the interface, Connected to the device side switch as the second connection destination, and connected to the third substrate and the interface so that the device side switch can be selectively connected to at least one of the third substrate and the interface. And connecting the electrical device to the interface includes attaching the fourth board connected to the third control device to the fourth slot, and connecting the fourth switch to the second slot. Connected to the device side switch as a connection destination of the fourth board, and the fourth switch so that the fourth switch can selectively connect the device side switch to at least one of the fourth board and the interface. The interface is connected to the fourth switch, and the third control device controls the electric device via the fourth substrate. Including setting the third control device and the fourth substrate, switching the fourth switch to connect to the interface, and switching the device-side switch, wherein the electric device is connected to the second substrate. Connecting the second switch to the device side switch as the first connection destination, and the second switch connects the device side switch to at least one of the second board and the interface. The second board and the interface are connected to the second switch so that they can be selectively connected to each other, and the second switch is switched so as to be connected to the second board. You may make it include switching a switch.

  Further, in the board switching method of the present invention, in connecting the electrical equipment to the interface, before the setting of the third control device and the fourth board is completed, the equipment-side switch and the first When a failure occurs in the connection with the switch, the device switch is switched so that the device switch and the fourth switch are connected, and the fourth switch and the third control are switched. The connection with the apparatus may be released, the first control terminal may be connected to the fourth switch, and the first control terminal may control the electrical device via the fourth switch. .

  Other problems and solutions to be disclosed by the present application will be made clear by the embodiments of the invention and the drawings.

  According to the present invention, it is possible to change the setting of the information collection and distribution device while performing remote monitoring control.

It is a figure which shows the structural example of the remote monitoring control system of this embodiment. 2 is a diagram for explaining a configuration of an information distribution apparatus 10. FIG. It is a figure explaining the information delivery apparatus 10 in the state where there is no space in the cyclic unit. It is a figure explaining the information delivery apparatus 10 of the state which replaced the cyclic unit 102 with the HDLC unit 102. FIG. It is a figure explaining the connection state of a communication line at the time of normal driving | operation. It is a figure which shows the flow of the switching process from an old channel to a new channel. It is a figure explaining a mode that the adjustment test by the test device 30 is performed. It is a figure explaining a mode that B line of switch 21 connected to switch 22B is connected to switch 22D. It is a figure explaining the connection state of a communication line at the time of backup operation. It is a figure explaining a mode that a setting is changed during backup operation. It is a figure explaining the connection state of a communication line at the time of normal operation using a new channel. 3 is a diagram illustrating an example when a failure occurs in an A line of a switch 21. FIG. It is a figure explaining the state which connected the B line | wire of the switch 21 to the old channel.

  Hereinafter, a remote monitoring control system according to an embodiment of the present invention will be described. FIG. 1 is a diagram illustrating a configuration example of a remote monitoring control system according to the present embodiment. In the remote monitoring and control system of this embodiment, a field device 4 (controlled device) such as a power facility installed in an electric station 1 such as a substation is installed in a remote area 3 such as a remote control station or sales office. This is a system for monitoring and controlling from the monitoring control terminal 8 (MP). Further, a control relay station 2 for relaying monitoring and control communication is provided between the remote place 3 and the electric station 1.

  The electrical station 1 is provided with a remote monitoring control device 6 (TC) connected to the field device 4 via the power receiving panel 5. The remote monitoring control device 6 is connected to the switch 21. The switch 21 switches the connection destination of the remote monitoring control device 6. In the present embodiment, the switch 21 is selectively connected to two connection destinations.

  The control relay station 2 is provided with an information collection and distribution device 10 (DX) that distributes information between the remote monitoring control device 6 and the monitoring control terminal 8. The information collection / distribution apparatus 10 is provided with a channel 101 which is a board for inputting / outputting information for each remote monitoring control apparatus 6. In addition, a backup monitoring control terminal 7 is installed at the control relay station 2, and a telecon interface 11 (TCIF) for distributing information between the backup monitoring control terminal 7 and the remote monitoring control device 6. Is installed.

  The information collection / distribution apparatus 10 is provided with a line control panel 12 for connecting the information collection / distribution apparatus 10 and the telecon interface 11 to the monitoring control terminal 8. The line control panel 12 is provided with a switch 22 for each channel 101 and switches the connection to either the channel 101 or the telecon interface 11.

  FIG. 2 is a diagram for explaining the configuration of the information distribution apparatus 10. A unit 102 having a slot for attaching a plurality of substrates is attached to the information distribution apparatus 10, and the channel 101 is attached to the slot of the unit 102. The channel 101 inputs and outputs information by a predetermined communication method corresponding to the remote monitoring control device 6. Examples of the communication method include a cyclic transmission method and an HDLC (Hi-level Data Link Control) transmission method. Only the channels 101 of the same communication method can be mounted on the unit 102, and channels 101 of different communication methods cannot be mixed.

  Since channels of different communication schemes cannot be mixed in the unit 102, for example, as shown in FIG. 3, the cyclic transmission scheme unit 102 (hereinafter also referred to as “cyclic unit”) has an empty slot. However, if there is no empty slot in the HDLC transmission unit 102 (hereinafter also referred to as “HDLC unit”), the channel 101 corresponding to the cyclic transmission method (hereinafter referred to as “cyclic channel”). The channel 101 corresponding to the HDLC transmission method (hereinafter also referred to as “HDLC channel”) cannot be added. In the example of FIG. 3, eight HDLC channels 101a-p are attached to both of the HDLC units 102C1 and 102C2 provided in the information collection / delivery device 10C. Even if an attempt is made to attach a new HDLC channel 101z, The HDLC channel 101z cannot be mounted in an empty slot of the cyclic unit 102B2 provided in the information collection / delivery device 10B. Therefore, the five cyclic channels 101A-E mounted on the cyclic unit 102A1 of the information collection / delivery device 10A are moved to any of the empty slots of the other cyclic units 102A1, 102B1, 102B2, and the example of FIG. As shown in FIG. 5, by replacing the unit 102A1 from the cyclic unit to the HDLC unit, a new HDLC channel 101z can be installed in any slot of the replaced HDLC unit 102A1.

  When the cyclic channels 101A-E attached to the cyclic unit 102A1 are moved to other units 102, the substrate of each channel 101 is once removed. While the substrate of the channel 101 is removed, it is impossible to control the field device 4 from the remote monitoring control device 6, and therefore the channel 101 is moved after switching to the backup operation.

  Hereinafter, a method for switching (detaching) the channel 101 while controlling the field device 4 will be described.

  FIG. 5 is a diagram illustrating the connection state of the communication line during normal operation. In the present embodiment, a switch 21 is installed in the substation 1, and the destination to which the remote monitoring control device 6 is connected is switched by the switch 21. In the following description, the line to which the switch is connected during normal operation is referred to as A line, and the other line is referred to as B line.

  In the control relay station 2, a switch 22 is installed for each channel 101, the switch 22A corresponding to the channel 101A is connected to the A line of the switch 21, and the switch 22B corresponding to the channel 101B is connected to the B line of the switch 21. The The A line of the switch 22A is connected to the channel 101A, and the B line of the switch 22A is connected to the telecon interface 11A. In the following description, the channel 101 connected to the A line of the switch 21 is also referred to as an A channel, and the channel 101 connected to the B line of the switch 21 is also referred to as a B channel. The channel 101A is connected to a monitoring control terminal 8A installed in the control station 3, and the telecon interface 11A is connected to a backup monitoring control terminal 7 installed in the control relay station 2. The A line of the switch 22B is connected to the channel 101B, and the B line of the switch 22B is connected to the telecon interface 11A. The channel 101B is connected to a monitoring control terminal 8B installed in the sales office 3. In this manner, the channel 101 or the telecon interface 11A is switched by the switch 22.

  In the example of FIG. 5, during normal operation, the monitoring control terminal 8A of the control station 3 monitors and controls the field equipment 4 of the substation 1 via the remote completion control device 6 (thick line in the figure).

  Here, the channels 101A and 101B are moved to another unit 102. In the example of FIG. 5, the control relay station 2 is provided with new channels 101C and 101D and corresponding switches 22C and 22D. In addition, a telecon interface 11B corresponding to the new channels 101C and 101D is provided. In the following, a description will be given of processing when switching is performed so that the substrate mounted on the channel 101A is removed and mounted on the channel 101C, and the substrate mounted on the channel 101B is removed and mounted on the channel 101D.

  FIG. 6 is a diagram showing a flow of switching processing from the channels 101A and 101B (old channel) to the channels 101C and 101D (new channel). First, an adjustment test of the new channels 101C and 101D is performed (S401). As shown in FIG. 7, the tester 30 is connected to the line connected to the new channels 101C and 101D, and it is confirmed whether or not the voltage level is within a predetermined range, and the standard is not satisfied. If so, make adjustments. It should be noted that adjustment is performed by a general method.

  Next, the B line of the switch 21 is connected to the switch 22D corresponding to the channel 101D (S402). As shown in FIG. 8, the B line of the switch 21 connected to the switch 22B is connected to the switch 22D. The monitoring control of the on-site equipment 4 is performed only from the monitoring control terminal 8A of the control station 3. The settings of the telecom interface 11A corresponding to the channel 101B, the channel 101B, the monitoring control terminal 8B of the sales office 3, the telecon interface 11B corresponding to the channel 101D, the channel 101D, and the monitoring control terminal 7 for backup of the control relay station 2, The monitoring control terminal 8A, the monitoring control terminal 8B, and the backup monitoring control terminal 7 are changed so that they can monitor and control the field device 4 of the substation 1 via the channel 101C, the channel 101D, or the telecon interface 11B (S403). In addition, the substrate mounted on the channel 101B is removed and mounted on the channel 101D. The change of the setting in step S403 includes, for example, rewriting the setting of the table that stores the connection relationship.

  After the setting change is completed, the switch 22D is switched to the B line (S404), the switch 21 of the power plant 1 is switched to the B line (S405), and the backup monitoring control terminal 7 is connected to the field device via the telecon interface 11B. 4 is monitored and controlled (S406). In this way, as shown in FIG. 9, the on-site equipment 4 is monitored and controlled from the backup monitoring control terminal 7 via the telecon interface 11B, the switch 22D, the switch 21, and the remote monitoring control device 6.

  While the backup monitoring control terminal 7 is monitoring and controlling the field device 4 via the telecon interface 11B, the A line of the switch 21A connected to the switch 22A is connected to the switch 22C as shown in FIG. (S406). Here again, the on-site equipment 4 of the substation 1 is monitored and controlled from the monitoring control terminal 7 for backup. During the monitoring control by the monitoring control terminal 7, the monitoring control terminal 8A of the channel 101A, the channel 101C and the control station 3 is used. Is changed so that the monitoring control terminal 8A, the monitoring control terminal 8B, and the backup monitoring control terminal 7 can monitor and control the field device 4 of the substation 1 via the channel 101C, the channel 101D, or the telecon interface 11B ( S408). In addition, the substrate mounted on the channel 101A is removed and mounted on the channel 101C. The change of the setting in step S408 includes, for example, rewriting the setting of the table that stores the connection relationship.

  Finally, by switching the switch 21 of the substation 1 to the A line (S409), the monitoring control of the field equipment 4 is normally performed from the monitoring control terminal 8A of the control station 3 through the new channel 101C as shown in FIG. Can be done as usual. Further, by switching the switch 21, it is possible to perform monitoring control from the monitoring control terminal 8B of the sales office 3 via the channel 101D. Further, by switching the switches 22C and 22D, monitoring control can be performed from the backup monitoring control terminal 7 of the control relay station 2 via the telecon interface 11B.

  By performing the above processing for each of the channels 101A-E on which the board is mounted in the unit 102A1 of FIG. 3, all the channels 101 of the unit 102A1 can be emptied. The HDLC unit can be replaced with an HDLC unit so that the HDLC channel can be mounted.

  As described above, the connection destination of the switch 21 of the substation 1 can be switched from the channels 101A and 101B to the channels 101C and 101D while continuing the monitoring control of the field device 4 of the substation 1.

== If a communication failure occurs during switching ==
Next, a case where a failure occurs during line switching will be described.

  FIG. 12 is a diagram illustrating an example when a failure occurs in the A line of the switch 21 in a state where the B line of the switch 21 illustrated in FIG. 8 is connected to the switch 22D. The line between the switch 21 and the switch 22 is connected by the connector 51. As shown in FIG. 12, when a failure occurs in the A line of the switch 21, the switch 21 may be automatically switched to the B line. Here, when the channel 101D and the telecon interface 11B are being set, Until the setting is completed, the communication via the channel 101D or the telecon interface 11B cannot be performed, so that the monitoring control of the field device 4 cannot be continued.

  Therefore, as shown in FIG. 13, the cable 52 connected to the switch 22D side of the connector 51D is removed, and the switch 22D side of the connector 51D and the switch 21 side of the connector 51A are connected by the cable 53. As a result, the switch 21 and the switch 22A are connected again. Therefore, the field device 4 can be monitored and controlled from the monitoring control terminal 8A of the control station 3 through the channel 101A.

  Although the present embodiment has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes equivalents thereof.

  For example, in the present embodiment, the field device 4 in the electric station 1 is monitored and controlled. However, the present invention is not limited to this, and the present invention can be widely applied to remote monitoring using a communication line.

  In this embodiment, the communication method of the unit 102 is one of the HDLC transmission method and the cyclic transmission method, but various communication methods may be adopted. In this embodiment, only the substrate of the channel 101 of the same communication method can be attached to the unit 102. However, there may be no case where there is no such limitation. That is, the present invention can be widely applied to a case where the substrate of the channel 101 is moved to a different slot.

  In the present embodiment, the switch 21 of the electric station 1 switches between two lines, but it may be switched to three or more lines. Further, the remote monitoring control device 6 and the direct switch 22 may be directly connected without providing the switch 21. Similarly, the switch 22 may be able to switch the connection with three or more channels 101, or the switch 22 may be omitted and the channel 101 and the switch 21 or the remote monitoring control device 6 may be directly connected. Good. Further, there may be a plurality of remote monitoring control devices 6 installed in the electric station 1.

  In the present embodiment, the backup monitoring control terminal 7 is connected to the telecon interface 11, but may be connected to the channel 101. In this case, the switch 22 switches between the channel 101 connected to the monitoring control terminal 3 in the remote location 3 and the channel 101 connected to the backup monitoring control terminal 7.

  In the present embodiment, the remote monitoring and control device 6 and the field device 4 are connected via the power receiving panel 5, but the power receiving panel 5 may be omitted. In this case, since it becomes impossible to operate directly at the electric station 1, a redundant configuration in which a plurality of remote monitoring control devices 6 are installed is preferable.

1 Electricity station (substation)
2 Control relay station 3 Remote location (control station, sales office)
4 Field equipment 5 Power receiving panel 6 Remote monitoring and control device (TC)
7 Monitoring and Control Terminal for Backup 8 Monitoring and Control Terminal 10 Information Collection and Distribution Device 11 Telecon Interface 12 Line Control Panel 21 Switch 22 Switch 30 Tester 51 Connector 52 Cable 53 Cable 101 Channel 102 Unit

Claims (5)

In a control system in which a control relay device is arranged between an electrical device and a control terminal and the electrical device is controlled from the control terminal via the control relay device, the electrical device and the control terminal are electrically connected A method of switching boards for
The control relay device includes a plurality of slots for mounting the board, and an interface for directly connecting the control terminal to the control relay device,
A first board connected to a first control terminal is attached to the first slot;
A second control terminal is connected to the interface;
When the electrical device is connected to the first substrate and the electrical device is controlled from the first control terminal via the first substrate,
Connecting the electrical device to the interface, and controlling the electrical device from the second control terminal via the interface;
Attaching the second board connected to the first control terminal to a second slot different from the first slot;
Setting the first control terminal and the second substrate so that the first control terminal can control the electrical device via the second substrate;
Connecting the electrical device to the second substrate and controlling the electrical device from the first control device via the second substrate;
A substrate switching method characterized by the above. The substrate switching method according to claim 1,
Attaching the second substrate to the second slot and attaching the third substrate connected to a third control terminal to the third slot;
After setting the second substrate, connecting the electric device to the third substrate and controlling the electric device via the third substrate from the third control device, the electric device Connecting to the second substrate,
A substrate switching method characterized by the above. The substrate switching method according to claim 1 or 2,
The electrical equipment is installed in an electrical station, the control relay device and the second control terminal are installed in a control relay station, and the first control terminal includes a control station and a sales office, Installed in a different location from the control relay station,
A substrate switching method characterized by the above. A substrate switching method according to any one of claims 1 to 3,
The first board is attached to the first slot, and the third board connected to the third control terminal is attached to the third slot,
The electrical device is connected to a device-side switch that can selectively connect the electrical device to at least one of the first and second connection destinations.
The control relay device includes fourth slots, and first to fourth switches corresponding to the first to fourth slots, respectively.
The first switch is connected to the device-side switch as the first connection destination, and the device-side switch can be selectively connected to at least one of the first board and the interface. Connected to the board and the interface,
The third switch is connected to the device side switch as the second connection destination, and the third side switch can be selectively connected to at least one of the third substrate and the interface. Connected to the board and the interface,
Connecting the electrical device to the interface comprises
Attaching the fourth board connected to the third control device to the fourth slot;
Connecting the fourth switch to the device switch as the second connection destination;
Connecting the fourth board and the interface to the fourth switch so that the fourth switch can selectively connect the device-side switch to at least one of the fourth board and the interface;
Setting the third control device and the fourth substrate so that the third control device controls the electric device via the fourth substrate;
Switching the fourth switch to connect to the interface;
Including switching the device side switch,
Connecting the electrical device to the second substrate,
The second switch is connected to the device side switch as the first connection destination,
Connecting the second board and the interface to the second switch so that the second switch can selectively connect the device side switch to at least one of the second board and the interface;
Switching the second switch to connect to the second substrate;
A substrate switching method comprising: switching the device side switch. The substrate switching method according to claim 4,
In connecting the electrical device to the interface, there is a problem in the connection between the device-side switch and the first switch before the setting of the third control device and the fourth board is completed. If it happens,
Switching the device-side switch so that the device-side switch and the fourth switch are connected,
Disconnecting the fourth switch and the third control device, connecting the first control terminal to the fourth switch,
The first control terminal controlling the electric device via the fourth switch;
A substrate switching method characterized by the above.

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