JP7043433B2 - Protection control system - Google Patents

Description

Embodiments of the present invention relate to protection control systems.

In the power system, the substation is provided with a protection relay device for protecting transmission lines, buses, substation equipment, etc., and a monitoring and control device for monitoring and controlling the entire substation. When the protection relay device changes the program of the protection relay device or the database of the monitoring / control device after the operation starts, the manufacturer of each device creates an update program, etc., and the operation side that operates the power system confirms the operation. , Workers went to the site to change the program, etc., and the changes were carried out by humans, which was troublesome.

Japanese Unexamined Patent Publication No. 2006-238697

An object to be solved by the present invention is to provide a protection control system capable of suppressing the trouble caused when changing the program of the electric power equipment in the electric power system.

The protection control system of the embodiment includes a protection relay device, a monitoring control device, and a distribution server. The protection control system protects and controls the power equipment installed in the electric station in the power system. In the protection control system, the protection relay device, the monitoring control device, and the distribution server are connected to each other so as to be communicable with each other. The protection relay device includes a power information acquisition unit, a cutoff control unit, and a transmission unit. The electric power information acquisition unit acquires electric power information related to electric power in the electric power equipment. The cutoff control unit controls a circuit breaker that supplies or cuts power to the power equipment based on the power information acquired by the power information acquisition unit. The transmission unit transmits the power information and operation information indicating the operation of the protection relay device to the monitoring control device and a management server connected to the monitoring server connected to the protection relay device and the monitoring control device. .. The monitoring control device includes a receiving unit, a failure determination unit, and a transmitting unit. The receiving unit receives the power information and the operation information from the protection relay device, and also receives operation information indicating the operation status in the power system from the protection relay device and the central monitoring control device connected to the monitoring control device. To receive. The failure determination unit determines whether or not the power equipment has failed based on the power information, the operation information, and the operation information received from the reception unit. The transmission unit transmits failure information indicating a determination result by the failure determination unit to the monitoring server. The distribution server has a generation unit and a transmission unit. The distribution server is communicably connected via the central monitoring and control device, the operation side network connected to the central monitoring and control device, the gateway connected to the operation side network, and the manufacturing side network connected to the gateway. .. The generation unit generates an update program for the protection relay device based on the failure information and the equipment information regarding the equipment of the protection relay device when the operation state in the power system is changed. The transmission unit transmits the update program generated by the generation unit to the management server.

The block diagram which shows the example of the protection control system 1 configuration of embodiment. The block diagram which shows the example of the structure of RY60 of embodiment. The block diagram which shows the example of the structure of the BCU 50 of an embodiment. The block diagram which shows the example of the configuration of the monitoring server 40 of an embodiment. The block diagram which shows the example of the configuration of the distribution server 90 of an embodiment. The figure which shows the example of the display in the operation information of an embodiment. The sequence diagram which shows the operation flow of protection control system 1 of embodiment.

Hereinafter, the protection control system of the embodiment will be described with reference to the drawings.

FIG. 1 is a block diagram showing an example of the protection control system 1 configuration of the embodiment. The protection control system 1 includes, for example, SCADA (Supervisory Control And Data Acquisition) 10, ITC (Intelligent Tele-Control unit) 20, SCU (Station Control Unit) 30, monitoring server 40, and a plurality of BCUs (Bay Control). Unit) 50 (BCU50-1, ... 50-N) (where N is an arbitrary natural number) and multiple RY (Relay) 60 (RY60-1, ... 60-M) (where M is an arbitrary natural number). A facility information storage server 70, a failure information storage server 80, and a distribution server 90 are provided. Here, the BCU 50 is an example of a “monitoring control device”. RY60 is an example of a "protection relay device".

Each of the devices constituting the protection control system 1, that is, the SCADA 10, ITC20, SCU30, monitoring server 40, BCU50, RY60, equipment information storage server 70, failure information storage server 80, and distribution server 90 is, for example, a CPU or the like. It is a device that operates with a built-in processor. The functional unit included in these devices is realized by executing a program (software) by a processor such as a CPU. Further, some or all of these functional parts may be realized by hardware such as LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or software. And hardware may work together.

The protection control system 1 is composed of an operation-side device group such as an electric power company that operates an electric power system, and a manufacturing-side device group such as a manufacturer that manufactures electric power equipment in the electric power system. In the present embodiment, the device group on the operation side is SCADA 10, ITC 20, SCU 30, monitoring server 40, BCU 50, and RY60. The equipment group on the manufacturing side is an equipment information storage server 70, a failure information storage server 80, and a distribution server 90.

The devices on the operation side are communicably connected by the network NW1 on the operation side and the station bus B. The operation side network NW1 is a communication network used by an electric power company or the like on the operation side, and is, for example, Ethernet (registered trademark), a telephone line, a mobile phone line, a wireless LAN (Local Area Network), or a WAN (Wide Area Network). It is a communication network including. A public network such as the Internet may be included in all or part of the operation side network NW1, but communication is performed by a communication method (for example, the public key method of the Internet) that guarantees the security of communication. Is preferable. The station bus B is, for example, a communication network using a LAN such as Ethernet.

The equipment group on the manufacturing side is communicably connected by the manufacturing side network NW2. The manufacturing side network NW2 is a communication network used by a manufacturer or the like on the manufacturing side, and is, for example, an Ethernet (registered trademark), a telephone line, a mobile phone line, a wireless LAN (Local Area Network), a WAN (Wide Area Network), or the like. It is a communication network including. Similar to the operation side network NW1, all or part of the manufacturing side network NW2 may include a public network such as the Internet, but a communication method that guarantees the security of communication (for example, a public key method of the Internet). ) Is preferred.

In the present embodiment, the operation side network NW1 and the manufacturing side network NW2 are communicably connected via the gateway GW. This makes it possible for the operation side and the manufacturing side to cooperate with each other via each other's network.

Hereinafter, the device group on the operation side will be described.

The RY60 is a protection relay device that controls circuit breakers provided at each of a plurality of locations in a transmission line provided in the power system. When an accident such as a short circuit or a ground fault occurs in the power system, the RY60 eliminates the accident and suppresses the spread of the accident by shutting off the circuit breaker and disconnecting the power equipment and system in which the accident occurred. To ensure the sound operation of the power system.

The RY60 acquires electric power information regarding the electric power supplied to the section of the transmission line to be protected by the RY60. The electric power information is information about electric power supplied to a section of a transmission line, and is, for example, information indicating a voltage value or a current value of electric power supplied to the section.

Further, the RY60 generates operation information regarding the operation of the circuit breaker. The operation information is information on the operation of the circuit breaker controlled by the RY60, and is, for example, information indicating whether the circuit breaker is in the connected state or the circuit breaker state. The RY60 transmits power information and operation information to the BCU 50, the monitoring server 40, the SCU 30, the ITC 20, and the SCADA 10.

The BCU 50 is provided for each line that supplies power to the load at the substation, and monitors and controls the power equipment in the line. The BCU 50 acquires power information and operation information from the RY 60 provided in the line monitored by itself, and generates failure information based on the acquired information. The failure information is information indicating whether or not the state of the line has changed and whether or not the state of the electric power equipment has changed. For example, it is information indicating that the RY60 provided in the line has failed. The BCU 50 transmits the generated failure information to the monitoring server 40, SCU30, ITC20, and SCADA10.

The BCU 50 receives, for example, operational information indicating the state of the system in the line and the state of the electric power equipment from the SCADA 10 or the like. Further, the BCU 50 controls the opening and closing of switches such as circuit breakers and disconnectors for changing the system configuration in the line according to the control of SCADA 10 and the like, and adjusts the system voltage supplied to the system.

The monitoring server 40 determines whether or not the system configuration is changed by SCADA 10 or the like based on the power information, the operation information, and the failure information. When the monitoring server 40 determines that the system configuration is changed, the monitoring server 40 requests the distribution server 90 for an update program indicating the processing performed by the RY 60 after the system change.

Here, the update program of the RY60 is a sequence process of the protection relay reflecting the change of the power equipment and the like due to the change of the system. The RY60 update program shows, for example, the changed CT ratio and VT ratio when the instrument transformer that measures the voltage and current of the system is changed.

Further, when the monitoring server 40 determines that the system configuration is changed, the monitoring server 40 requests the distribution server 90 for an update program indicating the processing performed by the BCU 50 after the system change.

Here, the update program of the BCU 50 is, for example, a process of displaying information reflecting the change of the system state in the line due to the change of the system and the change of the state of the electric power equipment. The update program of the BCU 50 shows, for example, a failure determination sequence after the change when the condition for determining the failure is changed due to the change of the system.

The monitoring server 40 receives the update program from the distribution server 90 and holds the received update program. The monitoring server 40 writes the updated program in the storage area where the program stored in the RY60 or BCU50 is stored, when the update preparation is completed.

Further, when the monitoring server 40 determines that the system configuration is changed, the monitoring server 40 requests the distribution server 90 for the operation information after the system change. Here, the operation information after the system is changed is, for example, information indicating the name of the changed line when the name of the line is changed.

The monitoring server 40 receives the operation information after the system is changed from the distribution server 90, and holds the received operation information. The monitoring server 40 updates the operation information by writing the retained operation information in the storage area where the operation information is stored in the BCU 50.

Here, the monitoring server 40 may display the update program or operation information (hereinafter referred to as an update program or the like) received from the distribution server 90. Then, the monitoring server 40 may write the update program or the like when the administrator who visually recognizes the update program or the like inputs an operation to approve the update.

The SCU 30 is a centralized monitoring and control device that monitors and controls a plurality of BCUs 50. The SCU 30 acquires failure information from each of the BCUs 50 to be monitored as information indicating the state of the line. Further, the SCU 30 acquires power information and operation information as information indicating the state of the line from each of the RY60s provided on the line of the BCU 50 to be monitored. When the SCU 30 changes the line state based on the line state in the BCU 50 or by the control of the SCADA 10, the SCU 30 controls the BCU 50 to change the line state.

The ITC 20 is a so-called teleconverter that relays communication between a BCU 50 (remote control station) located far away from a substation and an SCU 30.

SCADA 10 monitors and controls the entire power system. The SCADA 10 acquires power information and operation information from RY60 and failure information from BCU50 in the entire power system. The SCADA 10 determines whether or not to change the system based on the acquired information, and controls the RY60 and the BCU50 based on the determined result to change the state of the system.

Hereinafter, the device group on the manufacturing side will be described.

The equipment information storage server 70 includes, for example, the equipment information storage unit 701. The equipment information storage unit 701 stores equipment information. The equipment information is information about the electric power equipment provided in the electric power system, and is, for example, information indicating specifications, circuit diagrams, and the like of parts and instruments used in the RY60.

The failure information storage server 80 includes, for example, a failure information storage unit 801. The failure information storage unit 801 stores failure information. The failure information is information generated by the BCU 50 provided in the power system. The failure information storage server 80 acquires failure information from the BCU 50 via the SCADA 10, the operation side network NW1, the gateway GW, and the manufacturing side network NW2.

The distribution server 90 generates an update program in response to a request from the monitoring server 40. The distribution server 90 generates an update program for RY60 using, for example, equipment information and failure information. The distribution server 90 generates an update program for the BCU 50 using the equipment information and the failure information. The distribution server 90 generates operation information using the failure information. The distribution server 90 distributes the generated update program and operation information to the monitoring server 40.

FIG. 2 is a block diagram showing an example of the configuration of the RY60 of the embodiment. The RY 60 includes, for example, a communication unit 601, a power information acquisition unit 602, a cutoff determination unit 603, a control unit 604, and a storage unit 605.

The communication unit 601 communicates with the device group on the operation side via the station bus B. The electric power information acquisition unit 602 acquires electric power information. The cutoff determination unit 603 determines whether or not to cut off the circuit breaker based on the power information. The control unit 604 is a processor including, for example, a CPU, and controls the RY60 in an integrated manner. The control unit 604 executes a program stored in the storage unit 605 to perform various processes. The control unit 604 generates operation information based on, for example, the determination result of the cutoff determination unit 603. The storage unit 605 stores data such as a program for executing various processes in the RY 60 and variables used in the various processes.

FIG. 3 is a block diagram showing an example of the configuration of the BCU 50 of the embodiment. The BCU 50 includes, for example, a communication unit 501, a power information acquisition unit 502, an operation information acquisition unit 503, a failure determination unit 504, an operation information acquisition unit 505, a display unit 506, a control unit 507, and a storage unit 508. To prepare for.

The communication unit 501 communicates with the device group on the operation side via the station bus B. The power information acquisition unit 502 acquires the power information of the RY60 via the communication unit 501. The operation information acquisition unit 503 acquires the operation information of the RY60 via the communication unit 501. The failure determination unit 504 determines whether or not the power equipment in the line has failed based on the power information and the operation information. The operation information acquisition unit 505 acquires operation information via the communication unit 501. The display unit 506 displays operational information. The control unit 507 is a processor including, for example, a CPU, and controls the BCU 50 in an integrated manner. The control unit 507 executes a program stored in the storage unit 508 to perform various processes. The control unit 507 generates failure information based on the determination result of the failure determination unit 504, for example. The storage unit 508 stores data such as a program for executing various processes in the BCU 50 and variables used in the various processes.

FIG. 4 is a block diagram showing an example of the configuration of the monitoring server 40 of the embodiment. The monitoring server 40 is, for example, a communication unit 401, a power information acquisition unit 402, an operation information acquisition unit 403, a failure information acquisition unit 404, a system change determination unit 405, a distribution information acquisition unit 406, and a display unit 407. The input unit 408, the control unit 409, and the storage unit 410 are provided.

The communication unit 401 communicates with the device group on the operation side via the station bus B. Further, the communication unit 401 communicates with the distribution server 90 via the SCADA 10, the operation side network NW1, the gateway GW, and the manufacturing side network NW2. The power information acquisition unit 402 acquires power information via the communication unit 401. The operation information acquisition unit 403 acquires operation information via the communication unit 401. The failure information acquisition unit 404 acquires failure information via the communication unit 401. The system change determination unit 405 determines whether or not the system configuration is changed by SCADA 10 or the like based on the power information, the operation information, and the failure information. The distribution information acquisition unit 406 acquires distribution information from the distribution server 90 via the communication unit 401. The distribution information is the update program generated by the distribution server 90 and the operation information after the system is changed. The display unit 407 displays the distribution information. The input unit 408 acquires the information input by the keyboard or mouse operation by the administrator or the like. The control unit 409 comprehensively controls the monitoring server 40. The control unit 409 writes, for example, an update program and operation information in a predetermined storage area. The storage unit 410 stores the received update program and operation information.

FIG. 5 is a block diagram showing an example of the configuration of the distribution server 90 of the embodiment. The distribution server 90 includes, for example, a communication unit 901, a failure information acquisition unit 902, an equipment information acquisition unit 903, a distribution information generation unit 904, a control unit 905, and a storage unit 906.

The communication unit 901 communicates with the device group on the manufacturing side via the manufacturing side network NW2. Further, the communication unit 901 communicates with the monitoring server 40 via the manufacturing side network NW2, the gateway GW, the operating side network NW1, and the SCADA 10. The failure information acquisition unit 902 acquires failure information from the failure information storage server 80. The equipment information acquisition unit 903 acquires equipment information from the equipment information storage server 70. The distribution information generation unit 904 generates operation information (distribution information) after the update program and the system are changed based on the equipment information and the failure information in response to the request from the monitoring server 40. The control unit 905 comprehensively controls the distribution server 90. The storage unit 906 stores data used by the distribution information generation unit 904 to generate distribution information, for example, various simulation results and control sequences under various conditions in the RY60 and BCU50.

FIG. 6 is a diagram showing an example of display in the operational information of the embodiment. The operation information includes, for example, BCU items, SCU screens, and alarm items. The BCU item has each item of control target, display, switching, and behavior. The control target indicates an target controlled by the BCU 50. The display indicates the display corresponding to the controlled object. The type indicates the type of control target. The behavior indicates the operation of controlling the controlled object. The SCU screen has message items. The message indicates the content displayed on the SCU 30. The alarm has a bell and a buzzer. The alarm indicates the presence or absence of a bell or buzzer warning. In this figure, a CB (Circuit Breaker, circuit breaker) is shown as a control target of the BCU 50, and "CB" is displayed. It is shown that the control of "switching" is performed. Further, the controlled object "CB" is displayed on the SCU 30 as "CBXX" (where XX is, for example, the place name of the place where the circuit breaker is provided), and an alarm is given by a bell. It is shown that. Further, LS (Line Switch, disconnector) is indicated as a control target of the BCU 50, and "LS" is displayed, and "switching" of "on / off" whether the disconnector is in the connected state or the disconnected state is displayed. It is shown that the control is performed. Further, the controlled object "LS" is displayed as "LS instep" on the SCU 30, indicating that the alarm by the bell or buzzer is not given.

The BCU 50 acquires the operation information as shown in FIG. 6 from the SCADA 10 or the distribution server 90, and stores the acquired operation information in the storage unit 508. Further, the BCU 50 displays the received operation information on the display unit 506.

The SCU 30 and the ITC 20 may be configured to display operational information in the same manner as the BCU 50. In this case, the SCU 30 and the ITC 20 include, for example, a communication unit, a storage unit, and a display unit, acquire operation information from the SCADA 10 or the distribution server 90 via the communication unit, and store the acquired operation information. Remember in. Further, the SCU 30 and the ITC 20 display the received operation information on the display unit.

FIG. 7 is a sequence diagram showing an operation flow of the protection control system 1 of the embodiment. This figure shows the flow of operation from the acquisition of power information to the writing of the RY60 update program. In addition, the operation until the update program of the BCU 50 is written and the operation until the operation information is updated may be processed in the same flow.

First, the RY60 acquires power information (step S101) and generates operation information using the acquired power information (step S102). At this time, the RY 60 controls the circuit breaker based on the generated operation information. The RY60 transmits the power information and the operation information to the BCU 50 and the monitoring server 40 (step S103).

Next, the BCU 50 receives power information and operation information from the RY60 (step S104), and generates failure information using the received information (step S105). The BCU 50 transmits the failure information to the monitoring server 40 (step S106). At this time, the monitoring server 40 transmits the failure information to the failure information storage server 80. Alternatively, the monitoring server 40 may transmit the failure information to the SCADA 10 and cause the failure information to be transmitted to the failure information storage server 80 by the SCADA 10. The failure information storage server 80 stores the received failure information in the failure information storage unit 801.

The monitoring server 40 receives power information and operation information from the RY60, and also receives failure information from the BCU 50 (step S107). The monitoring server 40 determines whether or not the system is changed by using the power information, the operation information, and the failure information (step S108). When the monitoring server 40 determines that the system is changed, the monitoring server 40 requests the distribution server 90 to update the RY60 (step S109).

When the distribution server 90 receives the request for the update program of the RY60 from the monitoring server 40 (step S110), the distribution server 90 acquires the failure information from the failure information storage server 80 (step S111) and also acquires the equipment information from the equipment information storage server 70. (Step S112). The distribution server 90 generates an update program for the RY60 using the failure information and the equipment information (step S113). At this time, the distribution server 90 refers to various simulation results stored in the storage unit 906 and control sequences under various conditions in the RY60 and BCU50, and obtains a control sequence that matches the failure information and the equipment information of the RY60. It may be an update program. The distribution server 90 distributes the generated update program of RY60 to the monitoring server 40 (step S114).

The monitoring server 40 receives the update program of the RY60 from the distribution server 90 (step S115), and stores the received update program in the storage unit 410 (step S116). The monitoring server 40 confirms whether or not the update program of RY60 is ready to be written. The writing preparation here means, for example, that the RY60 to be updated is separated from the system so that an accident in the system is not detected. The monitoring server 40 confirms whether or not the RY60 to be updated is disconnected from the system by referring to the operation information, for example.

When the monitoring server 40 determines that the RY60 to be updated is ready to write the update program, the monitoring server 40 instructs the RY60 to write the update program (step S118). The RY60 receives an update program in response to an instruction from the monitoring server 40, and stores (writes) the received update program in a predetermined area of the storage unit 605 to update the program of the RY60 (step S119). ).

As described above, the protection control system 1 of the embodiment includes a RY60, a BCU 50, and a distribution server 90. The RY 60 acquires power information by the power information acquisition unit 602, and controls the circuit breaker by the cutoff determination unit 603 using the acquired power information. The RY60 transmits the operation information of the circuit breaker to the BCU 50 and the monitoring server 40 by the communication unit 601. The BCU 50 receives the power information and the operation information of the RY60 via the communication unit 501, receives the operation information from the SCADA 10, and uses the received information to determine whether or not the power equipment has failed by the failure determination unit 504. judge. The BCU 50 transmits the determination result by the failure determination unit 504 as failure information to the monitoring server 40 by the communication unit 501. The distribution server 90 is communicably connected to the monitoring server 40 via the SCADA 10, the operation side network NW1, the gateway GW, and the manufacturing side network NW2. The distribution server 90 generates an update program for RY60 based on failure information and equipment information by the distribution information generation unit 904 when the operation status in the power system is changed, and the generated update program is used as the communication unit 901. Distributes to the monitoring server 40.

As a result, in the protection control system 1 of the embodiment, since the operation side network NW1 and the manufacturing side network NW2 are connected via the gateway GW, the operation state in the power system is changed on the operation side. In addition, the update program generated by the manufacturing side can be automatically stored in the monitoring server 40 on the operation side, and the operation side can smoothly check the update program operation and update the RY60 program smoothly. It will be possible to do. That is, it is possible to reduce the time and effort required when changing the program of the electric power equipment in the electric power system.

Further, the protection control system 1 of the embodiment further includes a monitoring server 40. The monitoring server 40 receives power information and operation information from the RY 60 by the communication unit 401, receives failure information from the BCU 50, and uses the received information to change the operation status in the power system by the system change determination unit 405. Judge whether or not. The monitoring server 40 receives the power information and the operation information of the RY60 via the communication unit 401, receives the failure information of the BCU 50, and uses the received information to change the operation in the power system by the system change determination unit 405. Determine if it is done. Based on the determination result of the system change determination unit 405, the monitoring server 40 requests the distribution server 90 to update the program according to the operation change by the communication unit 901, and the distribution server 90 requests the program (update). Program) is received. The monitoring server 40 writes and updates the current program corresponding to the update program in the storage area (in the case of the update program of RY60, the storage unit 605 of RY60) by the control unit 409.

As a result, in the protection control system 1 of the embodiment, it is possible to determine whether or not the operation in the power system is changed by the monitoring server 40, request the update of the program according to the change in the operation, and respond to the request. It is not necessary for the worker to go to the site to update the program because the update program can be obtained and the program of the electric power equipment such as RY60 can be updated.

Further, in the protection control system 1 of the embodiment, in the monitoring server 40, the content of the update in the program received by the communication unit 401 is displayed on the display unit 407, and the content displayed on the display unit 407 is permitted to be updated. When the operation signal to that effect is input to the input unit 408, the program may be written in the storage area. As a result, in the protection control system 1 of the embodiment, since the content displayed on the display unit 407 can be confirmed, it is necessary for the manager on the operation side or the person in charge on the manufacturing side to go to the site and witness the update. do not have.

Further, in the protection control system 1 of the embodiment, in the distribution server 90, the distribution information generation unit 904 may update the operation information based on the equipment information and transmit the updated operation information to the monitoring server 40. As a result, in the protection control system 1 of the embodiment, it is possible to suppress the trouble caused when changing the database (operation information) of the electric power equipment in the electric power system as in the update program.

According to at least one embodiment described above, the RY 60, the BCU 50, and the distribution server 90 are provided. As a result, in the protection control system 1 of the embodiment, since the operation side network NW1 and the manufacturing side network NW2 are connected via the gateway GW, the operation state in the power system is changed on the operation side. In addition, the update program generated by the manufacturing side can be automatically stored in the monitoring server 40 on the operation side, and the operation side can smoothly check the update program operation and update the RY60 program smoothly. It will be possible to do. That is, it is possible to reduce the time and effort required when changing the program of the electric power equipment in the electric power system.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

1 ... protection control system, 40 ... monitoring server, 401 ... communication unit, 402 ... power information acquisition unit, 403 ... operation information acquisition unit, 404 ... failure information acquisition unit, 405 ... system change determination unit, 406 ... distribution information acquisition unit , 407 ... Display unit, 408 ... Input unit, 409 ... Control unit, 410 ... Storage unit, 50 ... BCU, 501 ... Communication unit, 502 ... Power information acquisition unit, 503 ... Operation information acquisition unit, 504 ... Failure determination unit, 505 ... Operation information acquisition unit, 506 ... Display unit, 507 ... Control unit, 508 ... Storage unit, 60 ... RY, 601 ... Communication unit, 602 ... Power information acquisition unit, 603 ... Blocking determination unit, 604 ... Control unit, 605 ... Storage unit, 90 ... Distribution server, 901 ... Communication unit, 902 ... Failure information acquisition unit, 903 ... Equipment information acquisition unit, 904 ... Distribution information generation unit, 905 ... Control unit, 906 ... Storage unit

Claims (4)

A protection control system that protects and controls electric power equipment installed in an electric power station in an electric power system, and includes a protection relay device, a monitoring control device, and a distribution server that are communicably connected to each other.
The protection relay device is
The electric power information acquisition unit that acquires electric power information related to electric power in the electric power equipment, and
A circuit breaker that controls a circuit breaker that supplies or cuts power to the power equipment based on the power information acquired by the power information acquisition unit.
It has the power information and the operation information indicating the operation in the protection relay device, the monitoring control device, and a transmission unit that transmits the protection relay device and the monitoring server connected to the monitoring control device.
The monitoring control device is
A receiving unit that receives the power information and the operation information from the protection relay device, and also receives the operation information indicating the operation status in the power system from the protection relay device and the central monitoring control device connected to the monitoring control device. When,
A failure determination unit that determines whether or not the power equipment has failed based on the power information, the operation information, and the operation information received from the reception unit.
The distribution server has a transmission unit that transmits failure information indicating a determination result by the failure determination unit to the monitoring server.
A distribution server that is communicably connected via the central monitoring and control device, the operation side network connected to the central monitoring and control device, the gateway connected to the operation side network, and the manufacturing side network connected to the gateway. ,
A generation unit that generates an update program for the protection relay device based on the failure information and the equipment information regarding the equipment of the protection relay device when the operation status in the power system is changed.
It has a transmission unit that transmits the update program generated by the generation unit to the monitoring server.
Protection control system. Further equipped with the monitoring server,
The monitoring server is
A receiving unit that receives the power information and the operation information from the protection relay device and also receives the failure information from the monitoring control device.
A determination unit for determining whether or not the operation in the power system is changed by using the power information, the operation information, and the failure information received by the reception unit.
Based on the determination result by the determination unit, the communication unit that requests the distribution server to update the program according to the change in operation and receives the program according to the request from the distribution server.
It has a control unit for writing and updating a program received by the communication unit in a storage area in which a current program corresponding to the program is stored.
The protection control system according to claim 1. In the monitoring server
A display unit that displays the contents of updates in the program received by the communication unit, and a display unit.
Further equipped with an input unit for inputting operation signals,
When an operation signal for permitting the update of the content displayed on the display unit is input to the input unit, the control unit writes the program in the storage area.
The protection control system according to claim 2. In the distribution server
The generation unit updates the operation information based on the equipment information when the operation state in the power system is changed.
The transmission unit transmits the operation information generated by the generation unit to the monitoring server.
The protection control system according to any one of claims 1 to 3.

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