JP5458992B2 - Replacement method of remote monitoring control device - Google Patents

Description

  The present invention relates to a method for replacing a remote monitoring control device, and more particularly, to a method for replacing a monitoring control device installed in a substation.

  Conventionally, remote monitoring of unmanned substations has been performed at a power station / control station using a remote monitoring and control device in the unmanned substation. When it is necessary to replace this remote monitoring control device due to functional deterioration, etc., a control position is added for the remote monitoring control device to be newly installed at the constant monitoring point (power station or control station), etc. We are responding by remodeling the scale to establish a new substation. For example, as shown in FIG. 11, in an unmanned substation, an existing remote monitoring and control device and an existing direct control panel, and a new remote monitoring and control device and a new direct control panel are provided. At the control station, a new monitor screen is created for each newly installed remote monitoring control device in each monitoring control device. Further, after the remote monitoring control device is replaced, it is necessary to delete the old control position.

  However, the above-described conventional method has a problem that enormous costs are required to create and delete control positions.

  In addition, during the switching period, the unmanned substation is provided with two series of remote monitoring control devices, which makes it difficult to monitor the entire substation in operation at a constantly monitored location. In addition, there is a problem that a complicated operation is required because two connected remote control devices operate each connected equipment and cannot perform SQP (sequencer) operation across the two systems. is there.

  The present invention has been made to solve the above-described problems, and provides a replacement method for a remote monitoring and control device that can suppress the cost required for switching and can be easily operated even during the switching period. Objective.

  In order to achieve the above object, a remote monitoring and control device replacement method according to the present invention includes a monitoring and control device for remotely monitoring the operation state of a substation, and a transformer and a circuit breaker installed in the substation. A first direct control panel that controls equipment including the first direct control panel, installed in the substation, connected to the supervisory control device via a network, and in response to control by the supervisory control device, the first direct control panel A remote monitoring control device replacement method in a substation control system including a remote monitoring control device that monitors the operation and operating state of the equipment via a control panel, wherein the remote monitoring target to be replaced in the substation The transmission system is the same as that of the control device, and the correspondence relationship between the electric station address set in the remote monitoring and control apparatus to be replaced and the substation indicated by the electric station address, and the replacement target Remote supervisor A remote monitoring control device after replacement set to include a correspondence relationship between the control position set in the control device and the device indicated by the control position is installed, and the post-replacement control device is installed in the substation. A second direct control panel that is connected to a remote monitoring control device and controls the device according to the control by the remote monitoring control device after the replacement, and in the substation, the monitoring control device and the Provided with a changeover switch for switching a remote monitoring control device connected via a network between the remote monitoring control device to be replaced and the remote monitoring control device after replacement, while sequentially stopping the devices The first direct control panel sequentially connects the first direct control panel and the second direct control panel in order to control the devices sequentially stopped via the second direct control panel; Said replacement When the operation of the remote monitoring control device is confirmed, the changeover switch is used to switch to the remote monitoring control device after the replacement. When the operation of the remote monitoring control device after the replacement is not confirmed, the changeover switch is used. To switch to the remote monitoring and control device to be replaced, and when the operation check of the remote monitoring and control device after the replacement is completed, stop the devices sequentially through the second direct control panel while sequentially stopping the devices. The connection between the first direct control panel and the second direct control panel for controlling the device is sequentially removed, and the remote monitoring control device to be replaced and the first direct control panel And the switch is removed to connect the network and the remote monitoring and control apparatus after the replacement.

  According to the present invention, it is the same transmission method as the remote monitoring and control device to be replaced, and the remote monitoring and control device after replacement set up including the same electric station address and control position is installed. A changeover switch for switching a remote monitoring control device connected to the monitoring control device via the network is provided, and when the operation check of the remote monitoring control device after replacement is performed or not, the changeover switch and the monitoring control device are Since the remote monitoring and control device connected via the network is switched to monitor the operation of the substation equipment and the operation state, the cost required for switching can be suppressed and the operation can be easily performed even during the switching period.

  The replacement method of the remote monitoring control device according to the present invention confirms the single operation by operating the remote monitoring control device after replacement independently before connecting the changeover switch and the remote monitoring control device after replacement. To be able to.

  The replacement method of the remote monitoring control device according to the present invention is connected to the second direct control panel and a simulation device that simulates a transformer or a circuit breaker before confirming the operation of the remote monitoring control device after replacement. Then, it is possible to switch to the remote monitoring control device after the replacement by the changeover switch, and to confirm the operation of the remote monitoring control device after the replacement with respect to the simulated equipment.

  As described above, according to the remote monitoring and control device switching method of the present invention, the transmission method is the same as that of the remote monitoring and control device to be replaced, and includes the same electric station address and control position. When installing the remote monitoring control device after replacement and providing a changeover switch for switching the remote monitoring control device connected to the monitoring control device via the network, and confirming the operation of the remote monitoring control device after replacement When the switch is not used, the remote switch connected to the supervisory control device via the network is switched with the changeover switch to operate the substation equipment and monitor the operation status. It is possible to obtain an effect that the operation can be easily performed even during the switching period.

It is the schematic which shows the structure of the substation control system which concerns on embodiment of this invention. It is an image figure of the comprehensive monitoring board in a power feeding station and a control station. It is an image figure of the monitor for monitoring operation in a power station and a control station. It is the schematic which shows the structure of a new direct control panel. It is a figure which shows a mode that the changeover switch, the new remote monitoring control apparatus, and the new direct control panel were installed. It is a figure which shows a mode that an existing direct control panel and a new direct control panel are connected. It is a figure which shows a mode that it switched so that a centralized monitoring control apparatus and the existing remote monitoring control apparatus might be connected. It is a figure which shows a mode that the connection of the existing direct control panel and the new direct control panel was removed. It is a figure which shows a mode that the changeover switch, the existing remote monitoring control apparatus, and the existing direct control panel were removed. It is a conceptual diagram which shows the replacement | exchange method of the remote monitoring control apparatus in the substation control system which concerns on embodiment of this invention. It is a conceptual diagram which shows the replacement | exchange method of the remote monitoring control apparatus in the substation control system which concerns on a prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a substation control system 10 according to an embodiment of the present invention includes a power station 12, a control station 14, and a plurality of unmanned substations 16. The control station 14 uses a computer to collectively control the monitoring and recording of the operating state of several tens of unmanned substations 16 and the operation of equipment. In addition, the power supply station 12 can also control the plurality of unmanned substations 16 in a collective manner, similarly to the control station 14. The unmanned substation 16 is controlled by installing a remote monitoring control device, which will be described later, between the control station 14 and the control station 14 so that the operation and operation status of the equipment in the substation can be monitored from the remote control station 14. It is a substation that connects the station 14 and the remote monitoring and control device with a communication line. Such a substation is called a remote monitoring and control substation (TS), or a “controlled substation” or a “super substation” (Supervision Substation).

  The power station 12 is provided with a general monitoring panel 18, a monitoring operation monitor 20, and a centralized monitoring control device 22. The centralized monitoring and control device 22 is connected to each of the general monitoring panel 18 and the monitoring operation monitor 20, and the centralized monitoring and control device 22 is connected to the control station 14 via the network, and the unmanned substation 16 is connected. Information for monitoring and information for operation are exchanged with the control station 14. For example, electrical station information such as an electrical station address indicating the unmanned substation 16, equipment information such as “on” and “off” information of equipment and information on voltage / current values as information for monitoring the unmanned substation 16 Control information such as an “on” or “off” command for equipment is exchanged between the power station 12 and the unmanned substation 16 as measurement information and information for operating the unmanned substation 16. .

  The general monitoring panel 18 displays a list of facility information and measurement information of a plurality of unmanned substations 16 based on the information output from the centralized monitoring control device 22 as shown in FIG. The monitoring operation monitor 20 displays facility information and measurement information of a specific unmanned substation 16 as shown in FIG. 3 based on the information output from the centralized monitoring control device 22. Further, the operator can operate the unmanned substation 16 by performing an operation input to the monitoring operation monitor 20. For example, it is possible to input an operation to the monitoring operation monitor 20 so as to select an arbitrary equipment of an arbitrary unmanned substation 16 and issue a control command. At this time, the centralized monitoring control device 22 transmits information for operating the unmanned substation 16 to the unmanned substation 16 via the control station 14.

  The control station 14 is provided with a general monitoring panel 24, a monitoring operation monitor 26, and a centralized monitoring control device 28. The centralized monitoring control device 28 is connected to each of the general monitoring panel 24 and the monitor 26 for monitoring operation, and the centralized monitoring control device 28 is connected to the power supply station 12 and each unmanned substation 16 via a network. Information for monitoring the unmanned substation 16 and information for operation are transmitted and received.

  Similar to the general monitoring panel 18 of the power station 12, the general monitoring panel 24 displays a list of facility information and measurement information of a plurality of unmanned substations 16, as shown in FIG. The monitoring operation monitor 26 displays facility information and measurement information of a specific unmanned substation 16 as shown in FIG. 3, similarly to the monitoring operation monitor 20 of the power station 12. In addition, when the operator inputs an operation to the monitoring operation monitor 20, information for operating the unmanned substation 16 is transmitted from the centralized monitoring control device 28 to the unmanned substation 16. 16 can be operated.

  The unmanned substation 16 is provided with a remote monitoring control device 30, a direct control panel 32, and equipment 34 such as a circuit breaker, a transformer, and a protective relay device.

  The remote monitoring and control device (hereinafter also referred to as TC) 30 is a device commonly referred to as a “telecom board” or “TC board”, and is a computer for monitoring the operation and operating state of the equipment. . The centralized monitoring control device 28 and the remote monitoring control device 30 of the control station 14 are connected by a communication cable (super cable).

  The direct control panel 32 is a device that transmits electrical information from the on-site equipment 34 to the remote monitoring control device 30 and transmits information such as an operation command from the remote monitoring control device 30 to the equipment 34. It is a coupling device installed at the contact point between the on-site equipment 34 and the remote monitoring control device 30 in order to easily receive the information.

  Next, in the substation control system 10 according to the present embodiment, a method for replacing the remote monitoring control device 30 of the unmanned substation 16 with a newly installed one will be described.

  First, the newly installed remote monitoring and control device after replacement is installed in the same unmanned substation 16. The installation location is set in, for example, the switchboard room where the existing remote monitoring control device 30 to be replaced is installed in consideration of the transmission distance and the like.

  The new remote monitoring control device (see 30N in FIG. 5) employs the same transmission method (for example, CDT method) as the replacement target remote monitoring control device 30. The center frequency of the transmission system is the same as that of the remote monitoring control device 30 to be replaced. The new remote monitoring and control apparatus may also adopt another transmission method (for example, HDLC method).

  Further, the newly installed remote monitoring and control apparatus is the same electric station as the electric station address table indicating the correspondence between the electric station address and the substation indicated by the electric station address, which is set in the remote monitoring and control apparatus 30 to be replaced. An address table is set. The correspondence relationship indicated by the electric station address table set in the remote monitoring control device 30 to be replaced, and the electric station address table indicating the correspondence relation between the added electric station address and the substation are newly established. It may be set in the remote monitoring control device. Here, the electric station address is an address for identifying the substation used in the program data stored in the centralized monitoring control devices 22 and 28.

  In addition, the newly installed remote monitoring control device has the same control position table as the control position table that is set in the remote monitoring control device 30 to be replaced and indicates the correspondence between the control position and the equipment indicated by the control position. Has been. Note that the correspondence relationship indicated by the control position table set in the remote monitoring control device 30 to be replaced, and the control position table indicating the correspondence relationship between the added control position and the equipment are newly provided remote monitoring control. It may be set in the device. Here, the control position is an address assigned to the equipment 34 to control and display various equipment 34 installed in the substation, which is used in the program data stored in the centralized monitoring control devices 22 and 28. It is.

  In addition, a newly installed direct control panel (see 32N in FIG. 5) is installed in the same unmanned substation 16. The installation location is, for example, set in the switchboard room in the same manner as the newly installed remote monitoring control device in consideration of the connection distance with the remote monitoring control device or the newly installed remote monitoring control device. The existing direct control panel 32 is an example of a first direct control panel, and the new direct control panel is an example of a second direct control panel.

  The new direct control panel receives operation commands from both the existing remote monitoring and control device 30 and the new remote monitoring and control device, and to both the existing remote monitoring and control device 30 and the new remote monitoring and control device. The display information and the measurement information are passed.

  For example, as shown in FIG. 4, the new direct control panel uses measurement information measured by sensors (not shown) provided in various equipment 34 as the existing remote monitoring control device 30 and the new remote monitoring control. Connected to both devices. The new direct control panel is connected so as to pass display information from the various equipment 34 to both the existing remote monitoring control device 30 and the new remote monitoring control device. The new direct control panel receives “ON” and “OFF” operation commands from both the existing remote monitoring control device 30 and the new remote monitoring control device, and receives the “ It is configured to operate the on / off control mechanism.

  Next, as shown in FIG. 5, switching to switch the remote monitoring control device connected to the centralized monitoring control device 28 of the control station 14 to either the existing remote monitoring control device 30 or the new remote monitoring control device 30N. The switch 40 is installed between the transmission line (communication cable) in the unmanned substation 16 and the remote monitoring control devices 30 and 30N. When the changeover switch 40 is installed, the changeover switch 40 is switched so that the centralized monitoring control device 28 and the remote monitoring control device 30 of the control center 14 are connected. As a result, the centralized monitoring control device 28 of the control station 14 transfers information (electrical signals) to the existing remote monitoring control device 30.

  Then, the remote monitoring and control device 30N is operated alone, and the operator of the unmanned substation 16 uses, for example, a simulation test device to check whether or not the function as the remote monitoring and control device 30N is satisfied.

  Next, after constructing a transmission path between the changeover switch 40 and the remote monitoring control device 30N, the operator of the unmanned substation 16 uses the changeover switch 40 to connect the centralized monitoring control device 28 of the control station 14 to the newly installed remote location. It switches so that the monitoring control apparatus 30N may be connected. Then, an operation check is performed to determine whether or not information can be passed between the centralized monitoring control device 28 of the control station 14 and the remote monitoring control device 30N. During this operation check, monitoring and control (hereinafter referred to as operation) of the unmanned substation 16 is disconnected from the centralized monitoring control device 28 of the control station 14, so The operator goes to the unmanned substation 16 and directly operates the various equipment 34 on the control panel 32.

  After the operation check is completed, the operator of the unmanned substation 16 switches the centralized monitoring control device 28 of the control station 14 and the existing remote monitoring control device 30 to be connected by the changeover switch 40.

  Then, a simulated circuit breaker that simulates a circuit breaker is connected to the newly-installed remote monitoring control device 30N, and then the operator switches the centralized monitoring control device 28 and the remote monitoring control device 30N of the control station 14 by the changeover switch 40. Switch to connect. Then, the operator of the control station 14 operates from the centralized monitoring control device 28 of the control station 14 to confirm that the simulated circuit breaker operates.

  The operation is confirmed by comparing the “ON” and “OFF” states of the simulated circuit breaker with the “ON” and “OFF” display states in the centralized monitoring control device 28 of the control station 14. A display test of measurement information will also be conducted.

  After the above operation check and measurement information display test are completed, the operator of the unmanned substation 16 connects the centralized monitoring control device 28 of the control station 14 and the existing remote monitoring control device 30 by the changeover switch 40. Switch to.

  Next, since it is not possible to switch all the equipment devices 34 of the unmanned substation 16 to stop (power failure), the following operations are performed by individually stopping each equipment device 34 unit.

  As shown in FIG. 6, the control cable between the stopped equipment 34 and the direct control panel 32 is removed, and the target equipment 34 and the newly installed direct control panel 32N are newly connected with the control cable. To do. After the connection, control of the equipment 34 via the remote monitoring control device 30N is performed by the centralized monitoring control device 28 of the control station 14, and the operation, display information, and measurement information of the target equipment 34 are confirmed. Check the operation.

  In addition, in order to enable control from the remote monitoring and control device 30 to be replaced, the existing direct control panel 32 and the new direct control panel 32 are connected so as to connect the stopped equipment 34 and the existing direct control panel 32. A direct control cable is used to connect directly to the control panel 32N.

  The above operation is repeated until switching is performed so that all the equipment devices 34 of the unmanned substation 16 and the control panel 30N are directly connected.

  As shown in FIG. 7, during the time other than the switching operation such as at night, the selector switch 40 is switched so that the centralized monitoring control device 28 of the control station 14 and the existing remote monitoring control device 30 are connected. As a result, the unmanned substation 16 can be operated from the control station 14 side without changing from the normal state.

  Here, the distant monitoring control devices 30 and 30N are arranged in the same control room, so that the transmission distance can be matched as much as possible. Therefore, it is necessary to perform adjustment (level correction due to transmission loss) due to different transmission paths. Disappear.

  Moreover, the operation (sequential operation) of the substation based on the programmed procedure can be performed by the centralized monitoring control device 22 of the power station 12 or the centralized monitoring control device 28 of the control station 14. The sequential operation (SQP operation) is an operation procedure by a sequence program registered in advance in the centralized monitoring control devices 22 and 28. For example, when there is an operation to stop (or use) the equipment 34 of the unmanned substation 16, the procedure (order) for operating the switch (thing like a switch) related to the equipment is determined. . When this procedure is registered in the centralized monitoring control device 22 or 28 and a start command for stopping (or using) a specific facility device is input from the control station 14, the operation is performed according to the operation procedure.

  Further, at the time of the confirmation test after the completion of the switching operation, the operator of the unmanned substation 16 connects the centralized monitoring control device 28 of the control station 14 and the new remote monitoring control device 30N by the changeover switch 40. Switch. In this case, since the centralized monitoring control device 28 of the control station 14 is disconnected, the operator of the control station 14 goes to the unmanned substation 16 and directly operates the equipment 34 on the control panel 32.

  Next, the equipment 34 of the unmanned substation 16 is sequentially stopped, and the existing direct control temporarily connected to enable operation of the equipment 34 stopped from the remote monitoring control device 30 as shown in FIG. The temporary control cable between the panel 32 and the new direct control panel 32N is removed.

  In addition, after removing all the temporary control cables between the existing direct control panel 32 and the new direct control panel 32N for connecting to each equipment 34, the existing remote monitoring control device 30 and the existing direct control panel 30N are removed. The board 32 and all control cables connected thereto are removed.

  It should be noted that the selector switch 40 is switched so that the centralized monitoring control device 28 and the remote monitoring control device 30 of the control station 14 are connected during the time other than the above removal work such as at night. As a result, the unmanned substation 16 can be operated from the control station 14 side without changing from the normal state.

  Further, at the time of the above removal work, the operator of the unmanned substation 16 is switched by the changeover switch 40 so that the centralized monitoring control device 28 of the control station 14 and the new remote monitoring control device 30N are connected. In this case, since the centralized monitoring control device 28 of the control station 14 is disconnected, the operator of the control station 14 goes to the unmanned substation 16 and directly operates the equipment 34 on the control panel 32.

  Then, as shown in FIG. 9, the changeover switch 40 that is not required upon completion of the removal work is also removed, and the centralized monitoring control device 28 and the newly installed remote monitoring control device 30N are directly connected with a communication cable, The replacement of the remote monitoring control device 30 of the unmanned substation 16 is completed.

  As explained above, according to the replacement method of the remote monitoring control device in the substation control system according to the present embodiment, the transmission method is the same as that of the existing remote monitoring control device, and the same electric station address, A new remote monitoring control device set including the control position is installed, and a changeover switch for switching the remote monitoring control device connected to the centralized monitoring control device via the network is provided to operate the new remote monitoring control device. Switch between existing and new remote monitoring and control devices connected to the centralized monitoring and control device via the network with the changeover switch when checking and not performing operation of unmanned substation equipment and monitoring operating conditions Therefore, it is possible to reduce the cost required for switching and to easily operate even during the switching period.

  Further, as shown in FIG. 10, since it is not necessary to create a new monitor screen for the newly installed remote monitoring control device at the power supply station / control station, it is possible to reduce the cost for replacing the remote monitoring control device. Further, since both the existing and new remote monitoring control devices are controlled without modifying the existing centralized monitoring control device, it is possible to prevent erroneous operation of the equipment.

  Moreover, since the SQP operation is possible from the power supply station and the control station even during the switching period, the operability is improved. Further, since the two-screen operation is not performed during the switching period, the operation of the substation can be easily performed.

  In addition to the existing remote monitoring and control device, a new remote monitoring and control device is set so that the transmission method is the same, the electric station address is the same, and the control position is the same, and two remote systems A new direct control panel that can communicate with the monitoring and control device at the same time is newly installed to include the same specifications as the existing one, so the existing and new remote monitoring and control devices can be handled in the same way (cloned and identical). Information transmission), SQP operation is always possible at the power supply station and the control station, which are constantly monitored. In addition, since it is not necessary to modify the centralized monitoring control device such as adding a control position at the power supply station or the control station, it is possible to reduce the cost for replacing the remote monitoring control device.

DESCRIPTION OF SYMBOLS 10 Substation control system 12 Power supply station 14 Control station 16 Unmanned substations 18 and 24 Monitoring board 20, 26 Monitoring operation monitor 22, 28 Centralized monitoring controller 30, 30N Remote monitoring controller 32, 32N Direct control board 34 Equipment Device 40 selector switch

Claims (3)

A monitoring and control device for remotely monitoring the operating state of a substation; a first direct control panel for controlling equipment including a transformer and a circuit breaker installed in the substation; and installed in the substation, A remote monitoring control device connected to the monitoring control device via a network and monitoring the operation and operating state of the device via the first direct control panel in accordance with the control by the monitoring control device. A method for replacing a remote monitoring control device in a substation control system,
In the substation, the same transmission method as the remote monitoring and control device to be replaced, and the substation indicated by the electric station address set in the remote monitoring and control device to be replaced and the electric station address A remote monitoring and control device after replacement set to include a correspondence relationship between the control position set in the remote monitoring control device to be replaced and the device indicated by the control position. Install
In the substation, a second direct control panel that is connected to the remote monitoring control device after the replacement and controls the device according to the control by the remote monitoring control device after the replacement is installed,
Switching for switching a remote monitoring control device connected to the monitoring control device via the network in the substation between the remote monitoring control device to be replaced and the remote monitoring control device after the replacement Provided a switch
The first direct control panel and the second direct control for controlling the equipment that the first direct control panel sequentially stops via the second direct control panel while sequentially stopping the equipment. Connect to the board in sequence,
When confirming the operation of the remote monitoring control device after the replacement, when switching to the remote monitoring control device after the replacement by the changeover switch, and not performing the operation confirmation of the remote monitoring control device after the replacement When the operation check of the remote monitoring control device after the replacement is completed, the second direct control panel is stopped while sequentially stopping the devices. Sequentially removing the connection between the first direct control panel and the second direct control panel for controlling the equipment sequentially stopped via
The remote monitoring control device and the first direct control panel to be replaced are removed, and the changeover switch is removed to connect the network and the remote monitoring control device after the replacement. Replacement method of remote monitoring control device.   The independent operation is confirmed by operating the remote monitoring control device after the replacement alone before connecting the changeover switch and the remote monitoring control device after the replacement. Replacement method of remote monitoring control device.   Before confirming the operation of the remote monitoring and control device after the replacement, connect the second direct control panel and a simulation device that simulates a transformer or a circuit breaker, and connect the remote control device after the replacement by the changeover switch. The method for replacing a remote monitoring control device according to claim 1 or 2, wherein switching to the monitoring control device is performed to confirm the operation of the remote monitoring control device after the replacement with respect to the simulated equipment.

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