JP7414518B2 - Supervisory control system and supervisory control method - Google Patents

Description

Embodiments of the present invention relate to a supervisory control system and a supervisory control method.

Hydroelectric power plants that generate electricity using the potential energy of water have been in operation for some time. Hydroelectric power plants are built in mountainous areas and are unmanned, and the control of power plant equipment and monitoring of operating conditions is sometimes performed at control centers located closer to urban areas than the power plant. . Monitoring equipment that controls and monitors hydroelectric power plants may be installed in a location other than the control center.

In this regard, a technique for remotely monitoring the operating state of equipment at a hydroelectric power plant has been disclosed (see, for example, Patent Document 1 and Patent Document 2).

Conventional technology requires security personnel who control and monitor hydroelectric power plants to go to the location where the corresponding control equipment and monitoring equipment are installed. However, it has been desired to control and monitor hydroelectric power plants from a remote location.

Japanese Patent Application Publication No. 11-095828 Japanese Patent Application Publication No. 2002-320306

The problem to be solved by the present invention is to provide a supervisory control system and a supervisory control method that can appropriately and without confusion monitor and control multiple hydroelectric power plants using multiple terminal devices. .

The supervisory control system of the embodiment includes a plurality of control devices and one or more supervisory control devices. Each control device obtains measured values regarding the state of the equipment from measuring instruments placed on the equipment of the corresponding hydroelectric power plant, and controls the operation of the equipment according to the input control information for the equipment. . The one or more monitoring and control devices generate a screen that is viewed by a plurality of terminal devices connected to the network based on the measurement values received from the control device, and the terminal device requests an operation for one control device. In this case, the control authority to accept operations is given to any one of the multiple terminal devices, the operation information from the terminal device to which the control authority has been given is accepted , and the target is determined based on the received operation information. Outputs control information for the control device. The monitoring and control device has a control screen that allows multiple terminal devices to view the monitoring screen that enables the monitoring of information on measured values obtained by the control device, accepts instructions to output operation information, and controls the operation of the equipment. can be viewed by the terminal device to which control authority has been given, generates screen information for displaying the screen, and transmits the generated screen information to the terminal device via the network.

FIG. 1 is a block diagram showing an example of the configuration of a hydroelectric power plant that employs the monitoring and control system of the embodiment. The figure which shows an example of the structure in the 1st example of operation including the hydroelectric power plant which employ|adopted the monitoring and control system of embodiment. The sequence diagram which shows an example of the flow of operation|movement which monitors the operating state of a hydroelectric power plant by the monitoring control system of embodiment in a 1st operation example. The sequence diagram which shows an example of the flow of operation|movement which controls the equipment of a hydroelectric power plant by the supervisory control system of embodiment in a 1st example of operation. The figure which shows an example of the structure in the 2nd operation example including the hydroelectric power plant which employ|adopted the monitoring and control system of embodiment. The figure which shows an example of the structure in the 3rd example of operation including the hydroelectric power plant which employ|adopted the monitoring and control system of embodiment.

Hereinafter, a supervisory control system and a supervisory control method according to an embodiment will be described with reference to the drawings.

FIG. 1 is a block diagram showing an example of the configuration of a hydroelectric power plant that employs a monitoring and control system according to an embodiment. The hydroelectric power plant shown in Figure 1 is a dam-type power plant that uses a regulating pond, reservoir, etc. Hydroelectric power plants include not only dam-type power plants, but also all kinds of power plants that generate electricity using hydropower, such as canal-type, dam-channel-type, run-of-the-river type, and pumped-storage type.

The equipment of the hydroelectric power plant shown in FIG. 1 includes, for example, a water level measuring device WL, an inlet valve IV, a water turbine WT, a servo motor SM, a generator WG, a circuit breaker CB, a transformer MT, a power transmission device PT, and the like. The water level measuring device WL measures the amount of water stored in the dam by measuring the water level of the dam. The inlet valve IV is an opening/closing device that allows water stored in the dam to flow in the direction of the water turbine WT. The water wheel WT rotates by receiving the force of water flowing from the dam with its blades. The servo motor SM adjusts the amount of water to the water turbine WT, for example, by adjusting the angle of guide vanes arranged around the water turbine WT. The generator WG generates electricity according to the amount of water flowing to the water turbine WT. The circuit breaker CB switches between a state in which power outputted by the generator WG is supplied to a supply destination and a state in which the power is cut off. The transformer MT transforms the power output by the generator WG. Power transmission device PT sends the power transformed by transformer MT to power transmission line PL for transmitting power to a power company. For example, measuring instruments such as sensors are attached to each piece of equipment at a hydroelectric power plant (hereinafter also collectively referred to as "field equipment FE"). Measuring instruments measure physical quantities such as pressure, temperature, position, and vibration, and electrical quantities such as voltage, current, and frequency of installed equipment. Each measuring device outputs a measured value, which is a measurement result, to the monitoring control system 100.

The monitoring control system 100 is a system that monitors and controls the status of field equipment FE installed at a hydroelectric power plant. The supervisory control system 100 includes, for example, a switchboard control device 110 and a supervisory control device 120. In the supervisory control system 100, the switchboard control device 110 and the supervisory control device 120 are connected to each other by a field network FNW. Field network FNW is a dedicated network within a hydroelectric power plant. A supervisory control device 120 included in the supervisory control system 100 is connected to a supervisory control terminal device 200 via a network NW. As shown in FIG. 1, there are a plurality of supervisory control systems 100 and multiple supervisory control terminal devices 200 connected to the network NW. The network NW is a network that extends over a wider area than the field network FNW, and is a network for communicating with areas outside the premises of the hydroelectric power plant. The network NW includes, for example, a LAN (Local Area Network), a WAN (Wide Area Network), a private line, and a public network line such as the Internet or a cellular network. The network NW may be wired or wireless. The network NW is an example of a "network" in the claims.

The switchboard control device 110 controls each facility of the hydroelectric power plant according to control instructions transmitted by the supervisory control device 120 and received via the field network FNW. The switchboard control device 110 includes, for example, a control device placed near the field equipment FE, and a switchboard device placed in a switchboard room or the like on the premises of a hydroelectric power plant. The switchboard control device 110 is an example of a "control device" in the claims.

The control equipment operates each piece of equipment in the hydroelectric power plant in accordance with control from the switchboard device. The control equipment includes equipment (not shown) for operating the respective equipment of the hydroelectric power plant, such as a rectifier and a servo amplifier. The rectifier adjusts the voltage generated by the generator WG according to the control signal output by the switchboard device. The servo amplifier amplifies a control signal for adjusting the angle of the guide vane of the water turbine WT, which is supplied to the servo motor SM in response to a control signal output by the switchboard device. The control equipment acquires the measured values of each measuring device of the field equipment FE and outputs them to the switchboard device.

The switchboard device controls the entire hydroelectric power plant in accordance with control instructions sent by the supervisory control device 120. At this time, the switchboard device controls the operation of the field equipment FE, that is, the hydropower generation control the entire place. The switchboard device controls the operations of on-site equipment FE installed at the hydroelectric power station, such as supervisory control, voltage adjustment, speed governor control, and automatic control in the hydroelectric power station. Supervisory control is monitoring of the measured values of electrical equipment such as circuit breakers CB, transformers MT, and power transmission equipment PT output by control equipment, and when an unexpected voltage change such as overvoltage is detected, protective equipment is activated. The goal is to control and protect each electrical device. Protective devices include relays and the like that protect each piece of equipment. Voltage adjustment is to control a rectifier provided in a control device to adjust the voltage generated by the generator WG. The switchboard device generates a control signal for causing the rectifier to adjust the power generation of the generator WG based on the measured value of the generator WG output by the control device, and transmits it to the control device. Governor control is to cause the servo motor SM to output a control signal for adjusting the angle of the guide vane of the water turbine WT to a servo amplifier included in the control equipment. Automatic control means executing a control sequence that determines the order in which each piece of equipment in the hydroelectric power plant is operated when the hydroelectric power plant is operated. The switchboard device processes each measurement value output by the control equipment as necessary, and transmits it to the monitoring and control device 120.

The monitoring and control device 120 is a terminal device for monitoring the operating state of a hydroelectric power plant and issuing instructions for starting or stopping the hydropower plant, changing the amount of power generation, and the like. The supervisory control device 120 performs exclusive processing so that control rights are given only to one of the supervisory control terminal devices 200 connected via the network NW. The monitoring control device 120 is also a server device. The supervisory control device 120 can view the history of the past operating status of the hydroelectric power plant by recording the measured values of the field equipment FE transmitted by the switchboard control device 110 and received via the field network FNW. It may also have a function. The supervisory control device 120 is arranged, for example, in a switchboard room of a hydroelectric power plant. The monitoring control device 120 includes, for example, a screen generation section 130 and a control switching section 140. The supervisory control device 120 is an example of a "supervisory control device" in the claims.

Part or all of the screen generation section 130 and the control switching section 140 of the supervisory control device 120 are realized by, for example, a hardware processor such as a CPU (Central Processing Unit) executing a program (software). Some or all of these functions are implemented in hardware (circuit parts) such as LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), and GPU (Graphics Processing Unit). ), or by collaboration between software and hardware. Some or all of these functions may be realized by a dedicated LSI. The program (software) may be stored in advance in a storage device (a storage device equipped with a non-transitory storage medium) such as an HDD (Hard Disk Drive) or flash memory, or may be stored in a removable device such as a DVD or CD-ROM. The information may be stored in a storage medium (non-transitory storage medium) that can be used, and the storage medium may be installed in the storage device by being attached to a drive device included in the supervisory control device 120.

The screen generation unit 130 generates a monitoring screen and a control screen based on the measured values of the field equipment FE acquired from the switchboard control device 110. The monitoring screen presents information regarding the measured values of field equipment FE, so that, for example, a supervisor at a hydropower plant can check (view) and monitor the operating status of the hydropower plant. This is the screen. The screen generation unit 130 generates a monitoring screen that is executed on the monitoring and control device 120 by an application program (hereinafter referred to as a “monitoring application”) for monitoring the operating status of a hydroelectric power plant, and the screen generation unit 130 includes Display on a display device (not shown). The control screen is a screen for receiving instructions for controlling the operation of equipment at the hydroelectric power plant, for example, from a security guard at the hydroelectric power plant. The screen generation unit 130 generates a control screen that is executed on the monitoring and control device 120 by an application program (hereinafter referred to as a "control application") for starting or stopping a hydroelectric power plant, or changing the amount of power generation. The information is displayed on a display device (not shown) included in the generation unit 130.

The supervisory control device 120 accepts operations on the control screen by security personnel and the like, and transmits control instructions according to the accepted operations to the switchboard control device 110 (switchboard device). Thereby, the switchboard device controls each equipment of the hydroelectric power plant according to the received control instructions.

The screen generation unit 130 is configured to display (browse) and operate the monitoring screen and control screen generated based on the measured values of the field equipment FE even on the monitoring control terminal device 200 connected to the network NW. Generate screen information. The screen generation unit 130 generates a screen using a language suitable for viewing and operating the monitoring screen and control screen by the monitoring and control terminal device 200, such as Hyper Text Markup Language (HTML), for example. Generate information. Languages that generate screen information include, for example, Extensible Markup Language (XML), Extensible Hyper Text Markup Language (XHTML), and JavaScript (JavaScript). (registered trademark)) may be used. The screen generation unit 130 transmits the generated screen information to the supervisory control terminal device 200 via the network NW.

The control switching unit 140 exclusively switches the control right that can issue control instructions to the switchboard control device 110 to any device. In addition to control instructions input from the supervisory control device 120, control instructions received from the supervisory control terminal device 200 via the network NW are also input to the switchboard control device 110. That is, the supervisory control system 100 can also be instructed to operate each facility of the hydroelectric power plant from a remote location using the supervisory control terminal device 200. For this reason, the control switching unit 140 switches the device that receives the control instructions transmitted to the switchboard control device 110 to the supervisory control device 120 or any of the supervisory control terminal devices 200. In other words, the control switching unit 140 switches the instruction route for each piece of equipment in the hydroelectric power plant.

For example, when the control screen displayed by the supervisory control device 120 itself is operated by a security guard or the like, the control switching unit 140 transfers the control instructions output by the supervisory control device 120 itself to the switchboard control device 110. Switch the instruction route to send to. On the other hand, if no operation is performed on the control screen displayed by the supervisory control device 120 itself, the control switching unit 140 receives a control instruction (hereinafter referred to as a "remote control instruction") transmitted by the supervisory control terminal device 200. The instruction path is switched to receive and transmit the message to the switchboard control device 110. In other words, the control switching unit 140 switches the instruction path so as to give the control authority over the switchboard control device 110 to the supervisory control terminal device 200. The control switching unit 140 transmits control right information indicating which device (the supervisory control device 120 or any of the supervisory control terminal devices 200) has been given the control right to the switchboard control device 110 via the network NW. It is transmitted to the supervisory control terminal device 200. The control right information is information indicating which device has been given the control right to issue control instructions to the switchboard control device 110. When a plurality of supervisory control terminal devices 200 are connected to the network NW, the control switching unit 140 transmits control right information to all the supervisory control terminal devices 200 connected to the network NW. The control right information is an example of "information indicating that an operation is being performed on the monitoring control device itself or a terminal device that is accepting an operation on the control screen" in the claims.

The control switching unit 140 may output control right information to the screen generation unit 130. In this case, the screen generation unit 130 presents (displays) control right information on the screen of the monitor screen or control screen to be generated, so as to determine which monitor and control terminal the control right is given to the monitor and control device 120. It is possible to notify security personnel or the like whether or not the device 200 is provided with the security information. The screen generation unit 130 can then transmit screen information including the display of control right information to the supervisory control terminal device 200 via the network NW. When the control right information is input from the control switching unit 140, the screen generation unit 130 transmits the screen information of the control screen to the supervisory control terminal device 200 to which the control right represented by the control right information has been given, and determines whether the control right is granted. The screen information of the control screen may not be transmitted to other monitoring and control terminal devices 200 that are not provided. In these cases, the control switching unit 140 may not transmit the control right information to the supervisory control terminal device 200.

The supervisory control terminal device 200 is a terminal device used by, for example, a safety officer of a hydroelectric power plant to monitor the operating status of the hydroelectric power plant, issue instructions to start or stop the hydropower plant, change the amount of power generation, etc. be. The monitoring and control terminal device 200 is placed in a remote location away from the hydroelectric power plant, such as a control center or a hydropower center installed outside the premises of the hydroelectric power plant. The hydraulic power center may be located within the same premises as the control center, such as within the control center, or may be located at a location away from the control center.

Some or all of the functions of the supervisory control terminal device 200 are realized, for example, by a hardware processor such as a CPU executing a program (software). Some or all of these functions may be realized by hardware (including circuitry) such as LSI, ASIC, FPGA, or GPU, or may be realized by collaboration between software and hardware. Good too. Some or all of these functions may be realized by a dedicated LSI. The program (software) may be stored in advance in a storage device (storage device equipped with a non-transitory storage medium) such as an HDD or flash memory, or may be stored in a removable storage medium (such as a DVD or CD-ROM). A non-transitory storage medium) may be installed in the storage device by attaching the storage medium to a drive device included in the supervisory control terminal device 200.

The monitoring and control terminal device 200 executes a monitoring application and a control application similar to those of the monitoring and control device 120. The supervisory control terminal device 200 is not limited to a terminal device that has one-to-one correspondence with a hydroelectric power plant, as long as it is a terminal device on which a monitoring application or a control application is executed. For example, it may be a dedicated terminal device for monitoring and controlling other hydroelectric power plants, or it may be a general computer terminal device, such as a personal computer (PC), a tablet terminal device, or a smartphone. It may be. When the supervisory control terminal device 200 is a general computer terminal device, each application may be a web browser executed on the supervisory control terminal device 200. In this case, the supervisory control device 120 functions as a web server device.

The supervisory control terminal device 200 receives screen information and control right information transmitted from the supervisory control system 100 (the screen generation unit 130 included in the supervisory control device 120), depending on the function of the application being executed. At this time, each application running on the supervisory control terminal device 200 is officially used by the user who operates the supervisory control terminal device 200 to monitor the operating status of the hydroelectric power plant and control the equipment. It is also possible to confirm whether the user is an authorized user through authentication processing, and to receive screen information and control right information transmitted by the monitoring control system 100 if the user is an authorized user. Authentication processing includes password authentication, biometric authentication, and the like. The supervisory control terminal device 200 may transmit user identification information to the supervisory control device 120 if the user performing the operation is an authorized user. In this case, the supervisory control device 120 may include the user identification information in the control right information transmitted to the supervisory control terminal device 200.

In the supervisory control terminal device 200, each application causes a display device (not shown) provided in the supervisory control terminal device 200 to display a monitor screen or a control screen similar to that of the supervisory control device 120, based on the received screen information. . When the supervisory control system 100 is employed at multiple hydroelectric power plants, each application running on the supervisory control terminal device 200 uses screen information and control information sent by the supervisory control system 100 of each hydroelectric power plant. The monitoring screen and control screen of a plurality of hydroelectric power plants may be simultaneously displayed based on the received screen information. Each application requests the supervisory control system 100 (supervisory control device 120) to send screen information when the display of a monitoring screen or a control screen is requested by a security guard's operation, and the supervisory control device 120 sends the screen information. Screen information transmitted after the request is approved may be received and a monitoring screen or control screen may be displayed.

In the supervisory control terminal device 200, each application determines which device (the supervisory control device 120 or any of the supervisory control terminal devices 200) is given the control right of the hydroelectric power plant based on the received control right information. The user (security staff, etc.) of the supervisory control terminal device 200 is notified of the status of the monitoring and control terminal device 200. For example, each application notifies the device to which the control right has been given by presenting (displaying) control right information on the displayed monitoring screen or control screen. As a result, the safety officer can display the monitoring screen and the control screen on the supervisory control terminal device 200 that he/she is using, that is, if he/she has been given the control right, and can If there is no screen, the screen to be displayed on the monitoring control terminal device 200 can be selected, such as displaying only the monitoring screen. When a plurality of monitoring control terminal devices 200 are connected to the network NW, the monitoring application running on each monitoring control terminal device 200 displays a monitoring screen based on the screen information, and the control application The control right information may be checked, and the control screen may be displayed if the control right is granted to the supervisory control terminal device 200 itself.

The control application running on the supervisory control terminal device 200 receives an operation on the control screen by the security personnel and issues remote control instructions according to the received operation when the supervisory control terminal device 200 itself has been given control rights. , is transmitted to the supervisory control system 100 (supervisory control device 120) via the network NW. Thereby, the supervisory control device 120 transmits the remote control instruction received from the supervisory control terminal device 200 to the switchboard control device 110 as a control instruction, and the switchboard control device 110 (switchboard device) responds to the received remote control instruction. , to control each equipment of the hydroelectric power plant.

With such a configuration, in the supervisory control system 100, the supervisory control device 120 can also view and operate the supervisory control terminal device 200 based on the measured values of the field equipment FE transmitted by the switchboard control device 110. A monitor screen and a control screen that can be created are generated and the screen information is sent to the monitor control terminal device 200. Then, the supervisory control terminal device 200 displays a supervisory screen and a control screen similar to those of the supervisory control device 120 based on the screen information transmitted by the supervisory control system 100. As a result, in a hydroelectric power plant that employs the supervisory control system 100, its security personnel and the like can monitor the operating status of the hydroelectric power plant and control its equipment even from a remote location.

Moreover, in the supervisory control system 100, the supervisory control terminal device 200 that displays the monitor screen and control screen based on the transmitted screen information is limited to a dedicated supervisory control terminal device 200 that has one-to-one correspondence with the hydroelectric power plant. No, any terminal device can be used as the supervisory control terminal device 200. That is, supervisory control terminal devices compatible with other hydroelectric power plants, general computer terminal devices, tablet terminal devices, notebook PCs, etc. can also be used as the supervisory control terminal device 200. For this reason, electric power companies and their security personnel who operate multiple hydroelectric power plants, including one that has adopted the monitoring and control system 100, may, for example, , while controlling the operation of equipment at other hydropower plants, it is also possible to monitor the operating status and control the equipment of the hydropower plant that employs the supervisory control system 100.

(First operation example)
Here, a configuration for operating a plurality of hydropower plants including a hydropower plant employing the supervisory control system 100 will be described. FIG. 2 is a diagram illustrating an example of a configuration in a first operational example including a hydroelectric power plant employing the monitoring and control system 100 of the embodiment. The configuration shown in Figure 2 is based on the configuration shown in Figure 2 when an electric power company operates hydroelectric power plants constructed at four bases (bases *1 to *3, and *n). This is an example of a case where the monitoring and control system 100 is adopted at a hydroelectric power plant No. 3. The configuration shown in Figure 2 allows monitoring of the operating status of the hydroelectric power plants at each base and control of equipment to be performed at each of the three bases #1 to #k and #n among the multiple control centers. This is an example of a case in which this is performed by any of the installed monitoring and control terminal devices. FIG. 2 also shows other components associated with each component. In FIG. 2, codes “*1” to “*3” “*n”, “#1” to “#k”, and “#n” representing the base are added after the code of each component, and The base to which each component belongs is distinguished.

In FIG. 2, the supervisory control system located at the hydroelectric power plant at each base and the supervisory control terminal device located at the control center at each base are a network including a network NWA, a gateway device GW, and a network NWB. They are connected to each other by NW. Network NWA and network NWB are, for example, LANs constructed in different areas. The gateway device GW connects the network NWA and network NWB, which are constructed in different areas, to each other. The gateway device GW allows the network NWA and the network NWB to be used as one network NW. If the communication protocol of the network NWA and the communication protocol of the network NWB are different, the gateway device GW may convert the communication protocol so that the network NWA and the network NWB can be used as one network NW. .

A hydroelectric power plant at a base*1 (hereinafter referred to as a "hydroelectric power plant*1") includes, for example, a switchboard control device 110*1, a supervisory control device 120*1, and a supervisory control system included in a supervisory control system 100*1. A relay device 121*1, a firewall 122*1, and a wireless router device 123*1 accompanying the device 120*1 are arranged. In the hydroelectric power plant*1, a switchboard control device 110*1 and a supervisory control device 120*1 are connected to each other by a field network FNW*1. At the hydroelectric power station*1, the tablet terminal device 210*1 can also monitor the operating status of the hydroelectric power station and control the equipment.

The relay device 121*1 aggregates and relays signal lines between connected components. The relay device 121*1 is, for example, a hub device. At the hydroelectric power plant*1, the relay device 121*1 is connected to a signal line connected to the supervisory control device 120*1, a signal line connected to the firewall 122*1, and a wireless router device 123*1. It relays each signal line with the signal line. Thereby, the screen information and control right information output by the supervisory control device 120*1 are transmitted to each of the firewall 122*1 and the wireless router device 123*1.

The firewall 122*1 is a network defense function for ensuring the security of communications at the hydroelectric power plant where the supervisory control system 100*1 is adopted. The firewall 122*1 transmits the screen information and control right information relayed by the relay device 121*1 from the supervisory control device 120*1 to the network NWA while ensuring security. The firewall 122*1 may be configured as a router device together with the relay device 121*1.

The wireless router device 123*1 converts information and data transmitted by wire into a wireless signal and sends it out. The wireless signal sent by the wireless router device 123*1 is, for example, a short-range wireless communication signal such as Wi-Fi that can communicate within the hydroelectric power plant*1. Thereby, the wireless router device 123*1 and, for example, the tablet terminal device 210*1 are connected to each other by short-range wireless communication within the hydroelectric power plant*1.

The tablet terminal device 210*1 realizes the same functions as the supervisory control terminal device 200 by executing the same monitoring application and control application as the supervisory control device 120*1. As a result, for example, a security guard at a hydroelectric power plant*1 can operate the monitoring and control device 120*1 by operating the tablet terminal device 210*1 carried at any location within the power plant. In addition, it is possible to monitor the operating status of hydroelectric power plants and control equipment.

The hydroelectric power plants at the base *2 and base *3 also have the same configuration as the hydroelectric power plant *1. Therefore, detailed explanations regarding the configuration of the hydroelectric power plants at base *2 and base *3 and the operation of each component will be omitted.

The hydroelectric power plant at site *n (hereinafter referred to as "hydroelectric power plant *n") is an example of a case where the control device of an existing hydroelectric power plant is monitored and controlled. The hydroelectric power plant *n includes a switchboard control device 910*n, gateway devices 911*n, 912*n, a supervisory control device 920*n, a relay device 921*n attached to the supervisory control device 920*n, and A firewall 922*n is arranged. In the hydroelectric power plant*n, a switchboard control device 910*n and a supervisory control device 920*n are connected to each other by a field network FNW*n. Hereinafter, when these components arranged in a hydroelectric power plant*n are collectively referred to as a "monitoring control system 900*n". The configuration of the hydroelectric power plant*n is similar to that of a conventional hydroelectric power plant.

The switchboard control device 910*n, like the switchboard control device 110, controls each of the hydroelectric power plants*n according to control instructions transmitted by the supervisory control device 920*n and received via the field network FNW*n. Control equipment.

The gateway device 911*n transmits data of measured values of each facility of the hydroelectric power plant *n outputted by the switchboard control device 910*n to the gateway device 912*n. Gateway device 911*n transmits control instruction data from supervisory control device 920*n transmitted by gateway device 912*n to switchboard control device 910*n. The gateway device 912*n transmits the measured value data of each facility outputted by the switchboard control device 910*n and input via the gateway device 911*n to the field network FNW*n, and performs monitoring control. Transmit to device 920*n. The gateway device 912*n transmits the control instruction outputted by the supervisory control device 920*n and received via the field network FNW*n to the gateway device 911*n. The gateway device 912*n may be configured as one gateway device together with the gateway device 911*n.

The supervisory control device 920*n, like the supervisory control device 120, is a terminal device for monitoring the operating state of the hydroelectric power plant, issuing instructions for starting or stopping the hydroelectric power plant, changing the amount of power generation, etc. However, the supervisory control device 920*n, like the supervisory control device 120, does not have a function that allows the monitoring screen and control screen to be displayed (browsed) and operated even on the supervisory control terminal device 200#1, for example. ing. The supervisory control device 920*n is arranged, for example, in a switchboard room of a hydroelectric power plant*n.

For example, similar to the relay device 121*1, the relay device 921*n aggregates and relays signal lines between connected components. The relay device 921*n is, for example, a hub device. In the hydroelectric power plant*n, the relay device 921*n relays the signal line connected to the monitoring and control device 920*n and the signal line connected to the firewall 922*n. As a result, information outputted by the supervisory control device 920*n, which notifies the operating status of the hydroelectric power plant*n, for example, is transmitted to the firewall 922*n.

The firewall 922*n is, for example, like the firewall 122*1, a network defense function for ensuring the security of communication at the hydroelectric power plant*n. The firewall 922*n transmits the information from the monitoring and control device 920*n relayed by the relay device 921*n to the network NWA while ensuring security. The firewall 922*n may be configured as a router device together with the relay device 921*n.

The control center of site #1 (hereinafter referred to as "control center #1") includes, for example, a supervisory control terminal device 200#1, a relay device 201#1 attached to the supervisory control terminal device 200#1, and a firewall 202. #1 and are arranged. The supervisory control terminal device 200#1 is the supervisory control terminal device 200 shown in FIG. The supervisory control terminal device 200#1 monitors the operating status of the hydroelectric power plants at each base, and transmits remote control instructions to the hydroelectric power plants at each base.

The relay device 201#1 is arranged between the supervisory control terminal device 200#1 and the firewall 202#1, and, for example, similarly to the relay device 121*1, it aggregates and relays signal lines between them. Relay device 201#1 is, for example, a hub device. In control center #1, relay device 201 #1 relays between a signal line connected to supervisory control terminal device 200 #1 and a signal line connected to firewall 202 #1. Thereby, the remote control instruction output by the supervisory control terminal device 200#1 is transmitted to the firewall 202#1. The relay device 201#1 relays between a signal line connected to, for example, a wireless router device (not shown) located in the control center #1 and a signal line connected to the supervisory control terminal device 200#1. You may. In this case, in control center #1, for example, the tablet terminal device 210*1 or a portable terminal device similar to the tablet terminal device 210*1 is used to monitor the operating status of the hydroelectric power plants at each site and to monitor the equipment. can be controlled.

The firewall 202#1 is, for example, like the firewall 122*1, a network defense function for ensuring the security of communication in the control center #1 where the supervisory control terminal device 200#1 is located. The firewall 202#1 transmits the remote control instruction from the supervisory control terminal device 200#1 relayed by the relay device 201#1 to the network NWB while ensuring security. As a result, the remote control instructions output by the supervisory control terminal device 200#1 are transmitted to the network NWB, the gateway device GW, the network NWA, and the firewall 122 (or The information is transmitted to the supervisory control device 120 (or the supervisory control device 920*n) via the firewall 922*n) and the relay device 121 (or the relay device 921*n). Firewall 202#1 may be configured as a router device together with relay device 201#1.

The control center of site #n (hereinafter referred to as "control center #n") also has the same configuration as control center #1. However, control station #n is a control station corresponding to hydroelectric power plant *n. For this reason, a dedicated supervisory control terminal device 200*n corresponding to the supervisory control system 900*n disposed at the hydroelectric power plant*n is arranged in the control station #n. However, the supervisory control terminal device 200*n can also run the same monitoring application and control application as the supervisory control device 120 included in the supervisory control system 100, thereby allowing each base to be It is possible to monitor the operating status of hydroelectric power plants at each site and send remote control instructions to hydroelectric power plants at each site. Therefore, detailed explanation regarding the configuration of control center #n and the operation of each component will be omitted.

With this configuration, monitoring of the operating status and control of equipment at each hydroelectric power station with different configurations can be performed at control stations #1, #n, and control stations installed in remote locations away from each hydroelectric power station. Alternatively, it can be carried out from within the premises of another hydroelectric power plant.

Next, the operation (processing) when monitoring the operating state of a hydroelectric power plant and controlling the equipment from a remote location will be described. To monitor the operating status of the hydroelectric power plant and control the equipment, display a monitoring screen or a control screen on any device (including the monitoring and control device 120 or any of the monitoring and control terminal devices 200 and the tablet terminal device 210). done by. At this time, for example, a safety officer at a hydroelectric power plant can determine whether or not he or she has been granted control authority by checking the notification of control authority. Therefore, security personnel and the like can decide at their own discretion which hydroelectric power plants they are allowed to monitor the operating status of and control the equipment. Therefore, security personnel or the like can decide whether to request or not to request the display of the monitoring screen or control screen based on the result of their own judgment. This determination can also be made by a monitoring or control application running on each device. However, in order to explain in more detail the operation (processing) when monitoring the operating status of a hydroelectric power plant and controlling the equipment from a remote location, the monitoring screen is An example of a case where a request is made to display a control screen will be explained.

When monitoring the operational status of a hydroelectric power plant or controlling equipment, some operations may involve operations by personnel related to the hydropower plant, such as security personnel. A monitoring application and a control application are executed in the supervisory control device 120 and the supervisory control terminal device 200, and the supervisory control device 120 and the supervisory control terminal device 200 are operated by the respective applications. However, in the following description, for ease of explanation, it is assumed that each of the switchboard control device 110, the supervisory control device 120, and the supervisory control terminal device 200 operates.

First, the operation (processing) of monitoring the operating state of a hydroelectric power plant will be explained. FIG. 3 is a sequence diagram illustrating an example of the flow of operations for monitoring the operational status of a hydroelectric power plant by the monitoring and control system 100 of the embodiment in the first operation example. Figure 3 shows the safety staff of a hydroelectric power plant belonging to control center #1 monitoring the operating status of hydroelectric power plant *1 and the hydropower plant at base *2 (hereinafter referred to as "hydropower plant *2"). This is an example of the operation when FIG. 3 shows a switchboard control device 110*1 and a supervisory control device 120*1 that constitute a supervisory control system 100*1, and a switchboard control device 110*2 and a supervisory control device 120* that constitute a supervisory control system 100*2. 2 and the supervisory control terminal device 200#1 located in the control center #1.

In the hydroelectric power plant*1, the switchboard control device 110*1 acquires the measured values output by measuring instruments attached to each equipment of the hydroelectric power plant (step S100*1). Then, the switchboard control device 110*1 transmits the acquired measurement value to the supervisory control device 120*1 via the field network FNW*1 (step S101*1). Here, the switchboard control device 110*1 repeatedly acquires the measured values in step S101*1 for a predetermined period, stores each acquired measured value in the storage unit, and collects the measured values in step S101*1. The measured values (measured values for a predetermined period) may be transmitted to the monitoring control device 120*1.

The monitoring control device 120*1 receives the measured value transmitted by the switchboard control device 110*1, and generates a monitoring screen based on the received measured value (step S102*1).

In the hydroelectric power plant*2, similarly to the hydroelectric power plant*1, the switchboard control device 110*2 acquires measured values and transmits them to the supervisory control device 120*2 (step S100*2 and step S101*2). , the monitoring control device 120*2 generates a monitoring screen based on the received measurement values (step S102*2).

Thereafter, the supervisory control terminal device 200#1 requests viewing of the operating status of the hydroelectric power plant*1 in response to an operation by the security personnel (step S103). At this time, the supervisory control terminal device 200#1 transmits, for example, a viewing request signal representing a request to view the operating state to the supervisory control system 100*1 (more specifically, the supervisory control device 120*1).

Upon receiving the viewing request signal from the monitoring and controlling terminal device 200#1, the monitoring and controlling device 120*1 transmits the screen information of the currently generated monitoring screen to the monitoring and controlling terminal device 200# that has transmitted the viewing request signal. 1 via the network NW (step S104).

Upon receiving the screen information from the supervisory control device 120*1, the supervisory control terminal device 200#1 displays the same monitoring screen as the supervisory control device 120*1 (monitoring of the hydroelectric power plant*1) based on the received screen information. screen) on a display device (not shown) (step S105).

Thereafter, the supervisory control terminal device 200#1 requests viewing of the operating status of the hydroelectric power plant*2 in response to the operation by the security personnel (step S106). At this time, the supervisory control terminal device 200#1 transmits a viewing request signal to the supervisory control system 100*2 (more specifically, the supervisory control device 120*2) via the network NW.

Upon receiving the viewing request signal from the monitoring and controlling terminal device 200#1, the monitoring and controlling device 120*2 transmits the screen information of the currently generated monitoring screen to the monitoring and controlling terminal device 200# that has transmitted the viewing request signal. 1 via the network NW (step S107).

Upon receiving the screen information from the supervisory control device 120*2, the supervisory control terminal device 200#1 displays the same monitoring screen as the supervisory control device 120*2 (monitoring of the hydroelectric power plant*2) based on the received screen information. screen) on the display device together with the currently displayed monitoring screen of the hydroelectric power plant*1 (step S108).

Through such operations (processing), security personnel belonging to control center #1, which is installed in a remote location away from the hydroelectric power plant*1 or hydroelectric power plant*2, can It is possible to check (browse) the current operating status of 2 at the same time. Thereafter, the supervisory control device 120*1 and the supervisory control device 120*2 may transmit screen information of the surveillance screen to the supervisory control terminal device 200#1 at predetermined intervals (step S104 and step S107). Then, each time the supervisory control terminal device 200#1 receives screen information from the supervisory control device 120*1 or the supervisory control device 120*2, the supervisory control terminal device 200#1 displays a new monitoring screen on the display device based on the received screen information. In other words, the monitoring screen may be updated. As a result, security personnel belonging to control center #1 can display the screens of multiple power plants such as hydroelectric power plant*1 and hydroelectric power plant*2, monitor their operating status, and monitor the operation status of these facilities. Operation can be monitored and controlled.

The operation (processing) of monitoring the operating state of the hydroelectric power plant shown in FIG. 3 can be similarly performed, for example, in the monitoring control terminal device 200 #n disposed in the control station #n. Furthermore, the operation (processing) of monitoring the operating state of the hydroelectric power plant can be performed simultaneously in a plurality of supervisory control terminal devices 200 (for example, supervisory control terminal device 200#1 and supervisory control terminal device 200#n). Thereby, for example, the security personnel belonging to the control station #1 and the security personnel belonging to the control station #n can simultaneously monitor the operating states of the hydroelectric power plant *1 and the hydroelectric power plant *2.

Next, the operation (processing) for controlling the equipment of the hydroelectric power plant will be explained. FIG. 4 is a sequence diagram illustrating an example of the flow of operations for controlling equipment of a hydroelectric power plant by the supervisory control system 100 of the embodiment in the first operation example. FIG. 4 is an example of an operation when a safety officer of a hydroelectric power plant belonging to control station #1 controls the equipment of the hydroelectric power plant *1. FIG. 4 shows the respective operations of the switchboard control device 110*1 and the supervisory control device 120*1 that constitute the supervisory control system 100*1, and the supervisory control terminal device 200#1 located in the control center #1. An example is shown.

The supervisory control terminal device 200#1 requests control of the equipment of the hydroelectric power plant*1 in response to the operation by the security personnel (step S200). At this time, the supervisory control terminal device 200#1 sends, for example, a control request signal representing a request to control the equipment of the hydroelectric power plant*1 to the supervisory control system 100*1 (more specifically, is transmitted to the supervisory control device 120*1).

When the supervisory control device 120*1 receives the control request signal from the supervisory control terminal device 200#1, the supervisory control device 120*1 confirms whether or not it is currently controlling the equipment (step S201). If it is confirmed that the equipment is being controlled, the supervisory control device 120*1 denies the equipment control by the supervisory control terminal device 200#1 (step S202). "Controlling the equipment is in progress" means, for example, when a safety officer at a hydroelectric power plant*1 is controlling the equipment by operating the control screen of the monitoring and control device 120*1, or when the This refers to a case where the equipment is controlled in accordance with a remote control instruction transmitted from the monitoring and control terminal device 200#n located at. In this case, in step S202, the supervisory control device 120*1 transmits a denial signal indicating that control of the equipment is denied to the supervisory control terminal device 200#1 via the network NW. At this time, the supervisory control device 120*1 rejects the notification representing the device currently controlling the equipment (the supervisory control device 120, another supervisory control terminal device 200, or the tablet terminal device 210*1). It may also be transmitted to the supervisory control terminal device 200#1 together with the signal. Furthermore, the supervisory control device 120*1 may notify the device currently controlling the equipment that it has received the control request signal from the supervisory control terminal device 200#1.

On the other hand, if it is confirmed in step S201 that the control of the equipment is not in progress, the supervisory control device 120*1 switches to give the control authority over the switchboard control device 110 to the supervisory control terminal device 200#1 (step S203 ). As a result, the operation of each facility of the hydroelectric power plant *1 is controlled by the control instruction from the monitoring and control terminal device 200#1. "Not executing equipment control" refers to the monitoring and controlling device 120 * 1, the monitoring and controlling terminal device 200 located in a control center other than control center #1 connected to the network NW, or a tablet at a hydraulic power center. This refers to a case where the equipment is not controlled by any of the terminal devices 210*1.

Then, the supervisory control device 120*1 approves the control of the equipment by the supervisory control terminal device 200#1 (step S204). In this case, in step S204, the supervisory control device 120*1 transmits an approval signal indicating approval for controlling the equipment to the supervisory control terminal device 200#1 via the network NW. Thereafter, the supervisory control device 120*1 transmits screen information of the currently generated surveillance screen and control screen to the supervisory control terminal device 200#1 that has transmitted the control request signal via the network NW (step S205).

When the supervisory control terminal device 200#1 receives the screen information from the supervisory control device 120*1, the supervisory control terminal device 200#1 displays the same monitoring screen and control screen as the supervisory control device 120*1 based on the received screen information. 200#1 is displayed on the display device (step S206). As a result, the security personnel belonging to control center #1 check the displayed monitoring screen, operate the monitoring and control terminal device 200#1, and input equipment parameters etc. to the control screen, thereby controlling the operation of the equipment. The contents of the change are input (step S207). The supervisory control terminal device 200#1 transmits a remote control instruction according to the change details of parameters etc. input on the control screen to the supervisory control device 120*1 via the network NW (step S208).

When the supervisory control device 120*1 receives the remote control instruction transmitted by the supervisory control terminal device 200#1, the supervisory control device 120*1 uses the received remote control instruction as a control instruction to control the switchboard control device 110*1 via the field network FNW*1. (Step S209).

When the switchboard control device 110*1 receives the control instruction transmitted by the supervisory control device 120*1, the switchboard control device 110*1 generates a control signal corresponding to the equipment to be controlled indicated in the received control instruction and outputs it to the equipment. More specifically, the switchboard device included in the switchboard control device 110*1 transmits the generated control signal to the control device corresponding to the equipment to be controlled, in response to the received control instruction. Thereby, the control device changes the operation of the corresponding equipment according to the received control signal (step S210).

The switchboard control device 110*1 acquires the measured value output by the measuring device attached to the equipment to be controlled (step S211). Then, the switchboard control device 110*1 transmits the acquired measurement value to the supervisory control device 120*1 via the field network FNW*1 (step S212). At this time, the switchboard control device 110*1 may collect measured values for a predetermined period and then transmit them to the monitoring and control device 120*1, similar to when monitoring the operating status of a hydroelectric power plant. good.

The monitoring control device 120*1 receives the measured value transmitted by the switchboard control device 110*1, and generates (updates) a monitoring screen based on the received measured value (step S213). The supervisory control device 120*1 transmits screen information of the generated surveillance screen to the supervisory control terminal device 200#1 that has transmitted the remote control instruction via the network NW (step S214).

When the monitor control terminal device 200#1 receives the screen information of the monitor screen from the monitor control device 120*1, the monitor control terminal device 200#1 updates the currently displayed monitor screen based on the received screen information and displays it on the display device ( Step S215). As a result, the security personnel belonging to the control center #1 check the updated monitoring screen, and if they confirm that the controlled equipment is in the intended operating state (operation), the security personnel belonging to the control center #1 is operated to input the procedure for ending equipment control on the control screen (step S216). When the procedure for terminating the equipment control is input on the control screen, the supervisory control terminal device 200#1 notifies the supervisory control device 120*1 of the end of the equipment control (step S217). At this time, the supervisory control terminal device 200#1 transmits, for example, a termination notification signal indicating that the control over the equipment of the hydroelectric power plant*1 is to be terminated to the supervisory control system 100*1 via the network NW.

As a result of checking the updated monitoring screen in step S215, the security personnel belonging to control center #1, if the controlled equipment is not in the intended operating state (operation), controls the monitoring and control terminal device 200#1. Operate to input equipment parameters and the like into the control screen again (step S207). As a result, the supervisory control terminal device 200#1, the supervisory control device 120*1, and the switchboard control device 110*1 repeat the operations (processes) from step S208 to step S215.

When the supervisory control device 120*1 receives the termination notification signal from the supervisory control terminal device 200#1, the supervisory control device 120*1 switches control rights over the switchboard control device 110 to the supervisory control device 120*1 itself (step S218). As a result, the operation of each facility of the hydroelectric power plant*1 is controlled by the monitoring and control device 120*1, that is, the operation within the hydroelectric power plant.

Through such operations (processing), security personnel belonging to control station #1, which is installed in a remote location away from the hydroelectric power plant*1, can confirm (view) the current operating status of the hydroelectric power plant*1. However, the operation of the equipment can be controlled. Thereafter, the supervisory control device 120*1 transmits the screen information of the surveillance screen to the supervisory control terminal device 200#1 at predetermined intervals (step S104), similarly to when monitoring the operating status of the hydroelectric power plant. Good too. The monitoring control terminal device 200#1 may update the monitoring screen every time it receives screen information from the monitoring control device 120*1. Thereby, the security personnel belonging to the control center #1 can monitor the operating state of the equipment of the hydroelectric power plant *1 whose operation has been changed, and can change the operation of the equipment more appropriately as necessary.

As described above, in the first operation example, the supervisory control device 120 located at each hydroelectric power plant that employs the supervisory control system 100 performs the following operations based on the measured values of the field equipment FE transmitted by the switchboard control device 110. Then, a monitoring screen and a control screen are generated that can be viewed and operated on any monitoring control terminal device 200 connected to the network NW. Then, the monitoring control device 120 transmits screen information of the generated monitoring screen or control screen in response to a request from the monitoring control terminal device 200. The monitor and control terminal device 200 displays a monitor screen and a control screen similar to those of the monitor and control device 120 based on the received screen information. As a result, in the first operational example, security personnel of each hydroelectric power plant can monitor the operating status of each hydroelectric power plant and control the equipment even from a remote location.

(Second operation example)
A second example of operation of a hydroelectric power plant employing the supervisory control system 100 will be described below. FIG. 5 is a diagram illustrating an example of a configuration in a second operational example including a hydroelectric power plant employing the monitoring and control system 100 of the embodiment. The second operation example also applies when an electric power company operates hydroelectric power plants constructed at four bases (bases *1 to *3, and *n), and three bases *1 to *3 This is an example of a case where the monitoring and control system 100 is employed in a hydroelectric power plant.

In the configuration of the second operation example shown in FIG. 5, three bases out of the plurality of control centers are added to the configuration of the second operation example shown in FIG. 1～! k, and! n hydropower centers have been added. The monitoring and control terminal equipment placed in the hydropower center of each hydroelectric power plant is also the same as the monitoring and control terminal equipment placed in each of control stations #1 to #k and #n. It is possible to monitor the operating status of hydroelectric power plants and control equipment.

Base! 1 hydropower center (hereinafter referred to as "hydropower center! 1") includes, for example, a monitoring and control terminal device 200!1, a relay device 201!1 attached to the monitoring and control terminal device 200!1, and a firewall 202!1. , and a wireless router device 203!1 are arranged. Hydropower center! 1, the tablet terminal device 210!1 can also be used to monitor the operating status of the hydroelectric power plant and control the equipment. Hydropower center! The supervisory control terminal device 200!1, the relay device 201!1, and the firewall 202!1 located at the control center #1 are the supervisory control terminal device 200!1, the relay device 201!1, and the firewall 202!1 located at the control center #1, respectively. , and firewall 202#1. Hydropower center! The wireless router device 203!1 and the tablet terminal device 210!1 located in be. Hence, the hydropower center! A detailed description of each component arranged in 1 will be omitted.

Base! n's Hydropower Center (hereinafter referred to as "Hydropower Center!n") is also a Hydropower Center! It has the same configuration as 1. However, the hydropower center! At n, a dedicated monitoring and control terminal device 200!1 corresponding to the hydroelectric power plant *n is arranged. However, the supervisory control terminal device 200!1 also uses the same monitoring application and control application as the supervisory control device 120 included in the supervisory control system 100, similar to the supervisory control terminal device 200*n located in the control center #n. By executing this, it is possible to monitor the operating status of the hydroelectric power plants at each location and to send remote control instructions to the hydroelectric power plants at each location. Hence, the hydropower center! A detailed explanation regarding the configuration of n and the operation of each component will be omitted.

In the configuration of the second operational example shown in FIG. , a gateway device GWD, and a network NW including a network NWD. Network NWC and network NWD are, for example, dedicated lines constructed in different areas. Gateway device GWD, like gateway device GW in the first operation example, connects network NWC and network NWD constructed in different areas to each other. Gateway device GWD allows network NWC and network NWD to be used as one network NW. In the network NW having such a configuration, the monitoring and control terminal device 200 at each base can monitor the operating status and control the equipment at each hydroelectric power station while ensuring security through a dedicated line. .

With this configuration, in the second operation example, as in the first operation example, monitoring of the operating status and equipment control at each hydropower station with different configurations can be performed remotely from each hydropower station. Control station #1, control station #n, and hydraulic power center installed on the ground! 1 and Hydropower Center! n, or from the premises of other hydroelectric power plants.

The operation (processing) of monitoring the operating status of the hydroelectric power plant from a remote location and controlling the equipment in the second operation example is similar to the operation (processing) in the first operation example shown in Figures 3 and 4. It can be easily understood by thinking. Therefore, detailed explanation regarding the operation (processing) in the second operation example will be omitted.

(Third operation example)
A third example of operation of a hydroelectric power plant employing the supervisory control system 100 will be described below. FIG. 6 is a diagram illustrating an example of a configuration in a third operational example including a hydroelectric power plant employing the monitoring and control system 100 of the embodiment. The third operation example also applies when an electric power company operates hydroelectric power plants constructed at four bases (bases *1 to *3, and *n), and three bases *1 to *3 This is an example of a case where the monitoring and control system 100 is employed in a hydroelectric power plant.

In the configuration of the third operational example shown in FIG. 6, the network NW including the network NWC, gateway device GWD, and network NWD in the second operational example shown in FIG. 5 is replaced by the network NWP. The network NWP may be, for example, a public network line built over a wide area or a dedicated network. In the network NW having such a configuration, the monitoring and control terminal device 200 at each base can more easily monitor the operating status and control the equipment at each hydroelectric power station using a web browser or the like. Furthermore, a safety officer at a hydroelectric power plant can monitor the operating status and control equipment at any location other than the hydropower station, control center, or hydropower center.

With such a configuration, in the third operation example, as in the first and second operation examples, monitoring of the operating status and control of equipment at each hydropower station with different configurations can be performed at each hydropower station. Control station #1, control station #n, and hydropower center located in remote locations away from the power plant! 1 and Hydropower Center! n, or from the premises of other hydroelectric power plants.

The operation (processing) of monitoring the operating status of the hydroelectric power plant from a remote location and controlling the equipment in the third operation example is similar to the operation (processing) in the first operation example shown in Figures 3 and 4. It can be easily understood by thinking. Therefore, detailed explanation regarding the operation (processing) in the third operation example will be omitted.

As described above, in the supervisory control system of the embodiment, the supervisory control device can also view and operate on the supervisory control terminal device based on the measured values of the field equipment transmitted by the switchboard control device. It generates screens and control screens and sends the screen information to the supervisory control terminal device. Thereby, the supervisory control terminal device can display the same supervisory screen or control screen as the supervisory control device, based on the screen information transmitted by the supervisory control system. As a result, at hydropower plants that have adopted a monitoring and control system, personnel related to the hydropower plant, such as security personnel, can be It is possible to monitor the operating status of hydroelectric power plants and control equipment.

Furthermore, in the supervisory control system of the embodiment, although multiple supervisory control terminal devices connected to the network can simultaneously monitor multiple hydroelectric power plants (including the same hydroelectric power plant), Control authority over the equipment is given to one supervisory control terminal device. This allows the hydropower plant personnel to control the operation of the hydropower plant equipment in a convenient and undisturbed manner.

According to at least one embodiment described above, the supervisory control system (100) includes a plurality of control devices (110) and one or more supervisory control devices (120). Each control device (110) obtains measured values regarding the state of the device from a measuring device placed on the device (equipment) of the hydroelectric power plant corresponding to the control device (110), and also receives input control information for the device. (control instructions) to control the operation of the equipment. One or more monitoring and control devices (120) display screens (monitoring screens, control screen), and receives operation information (remote control instructions) for one control device (110) from one of the plurality of terminal devices (200), and based on the received operation information, Outputs control information for the control device (110). As a result, in the supervisory control system (100), those involved in the hydropower plants can monitor (monitor the operating status) and control (monitor the operation of the equipment) multiple hydropower plants using the multiple terminal devices (200). (changes, etc.) can be implemented appropriately and without confusion.

Although several embodiments of the invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention as well as within the scope of the invention described in the claims and its equivalents.

100,100*1,100*k,100*3...Monitoring control system, 110,110*1,110*k,110*3...Switchboard control device, 120,120*1,120*k, 120*3...Monitoring control device, 121,121*1,121*k,121*3...Relay device, 122,122*1,122*k,122*3...Firewall, 123* 1,123*k, 123*3...Wireless router device, 130...Screen generation unit, 140...Control switching unit, 200,200#1,200#k,200#n,200!1, 200! k, 200! n... Supervisory control terminal device, 201#1, 201#k, 201#n, 201!1, 201! k, 201! n...Relay device, 202#1, 202#k, 202#n, 202!1, 202! k, 202! n...Firewall, 203!1,203! k, 203! n...Wireless router device, 210,210*1,210*2,210*3...Tablet terminal device, 210!1,210! k, 210! n...Tablet terminal device, NW, NWA, NWB, NWC, NWD, NWP...Network, GW, GWD...Gateway device, FNW, FNWA, FNWB, FNWC...Field network, WL... Water level measuring device, IV...inlet valve, WT...water turbine, SM...servo motor, WG...generator, CB...breaker, MT...transformer, PT...power transmission Equipment, PL...Power transmission line, FE...Field equipment, 900*n...Monitoring control system, 910*n...Switchboard control device, 911*n, 912*n...Gateway device, 920 *n...Monitoring control device, 921*n...Relay device, 922*n...Firewall, FNW*n...Field network

Claims (9)

A plurality of control devices, each of which obtains measured values regarding the state of the equipment from a measuring device placed on the equipment of the corresponding hydroelectric power plant, and controls the equipment that has been input. a plurality of control devices that control operations of the devices according to information;
A screen to be viewed by a plurality of terminal devices connected to a network is generated based on the measurement value received from the control device, and when an operation is requested from the terminal device to one of the control devices, the plurality of screens are generated. The control right to receive the operation is given to any one of the terminal devices among the terminal devices, the operation information from the terminal device to which the control right has been given is received, and based on the received operation information, the target one or more supervisory control devices that output the control information for the control device;
Equipped with
The supervisory control device includes:
a monitoring screen that allows the plurality of terminal devices to view information on the measured values acquired by the control device;
accepts an instruction to output the operation information, and allows the terminal device to which the control authority has been granted the control screen to view a control screen that enables the operation of the device to be controlled;
generating screen information for displaying the screen, and transmitting the generated screen information to the terminal device via the network;
Supervisory control system. The supervisory control device accepts an operation performed on the control screen by the terminal device to which the control right has been granted, when no operation is performed on the supervisory control device itself, and responds to the received operation. outputting the control information to the control device;
The supervisory control system according to claim 1 . The supervisory control device notifies other terminal devices via the network that an operation is being performed on the supervisory control device itself or information representing the terminal device that is accepting the operation on the control screen. do,
The supervisory control system according to claim 1 or claim 2 . The terminal device includes a portable terminal device,
The monitoring and control device receives the operation information transmitted by the portable terminal device using short-range wireless communication.
The supervisory control system according to any one of claims 1 to 3 . The network is a dedicated network between the supervisory control device and the terminal device,
The supervisory control system according to any one of claims 1 to 4 . the network is a public network;
The supervisory control system according to any one of claims 1 to 4 . the network is a wireless network;
The supervisory control system according to any one of claims 1 to 6 . Further comprising an application program executed on each of the plurality of terminal devices,
Each of the application programs views the screen or transmits the operation information,
The supervisory control system according to any one of claims 1 to 7 . Multiple control device computers
Obtaining a measurement value regarding the state of the equipment from a measuring device placed on the equipment of the hydroelectric power plant corresponding to the own equipment, and controlling the operation of the equipment according to the input control information of the equipment,
one or more supervisory control device computers,
A screen to be viewed by a plurality of terminal devices connected to a network is generated based on the measurement value received from the control device, and when an operation is requested from the terminal device to one of the control devices, the plurality of screens are generated. The control right to receive the operation is given to any one of the terminal devices among the terminal devices, the operation information from the terminal device to which the control right has been given is received, and based on the received operation information, the target outputting the control information for the control device,
a monitoring screen that allows the plurality of terminal devices to view information on the measured values acquired by the control device;
accepts an instruction to output the operation information, and allows the terminal device to which the control authority has been granted to view a control screen that enables the operation of the device to be controlled;
generating screen information for displaying the screen, and transmitting the generated screen information to the terminal device via the network;
Supervisory control method.

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