JP3457118B2 - Power system monitoring and control system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power system supervisory control system, and more particularly to a single power system supervisory control system.

[0002]

2. Description of the Related Art FIG. 13 is a diagram showing the structure of a conventional single-system power system monitoring and control system. In the figure, 11 is a main computer for monitoring and controlling the power system under its control. Since it is a single system, only one is installed. An external storage device 111 is connected to the main computer 11, and a magnetic disk device or the like is used. 1
Reference numeral 14 is a system console of the main computer 11, 115 is a display device (CRT: cathode) of the system console 114.
ray tubes), 12 and 13 are connected to the main computer 11 and are operated by a system operator. Control console A, control console B, 1
25, 126, 135, 136 are graphic CRTs (graphic CRs) provided on the control console A12 and the control console B13.
T) device, 15 is a system monitoring panel, 16 is a system monitoring panel controller for controlling the status display of the controlled station such as circuit breaker open / close status and bus voltage for the system monitoring panel 15, and 161 is a system monitoring panel controller 16. It is an external storage device connected, and a magnetic disk device or the like is used. 181,18
Reference numerals 2 and 183 denote the first, i-th, and n-th remote monitoring control device slave stations (the remote monitoring control device is usually called a teleconverter and the term “TC” (tele-control) is used. , 22 is a plurality of TC slave stations 181, 1
It is the TC master station that controls 82,183. TC is a transmission device for controlling, controlling and monitoring the status of equipment at controlled stations such as distribution substations located in a distant place at a centralized control station, and controlling scattered distribution substations or equipment at one location. By doing so, automation (unmanned) is achieved. The TC slave station is installed on the controlled station side, and the TC master station is installed on the centralized control station side. Reference numerals 231, 232 and 233 are transmission lines connecting the plurality of TC slave stations 181, 182 and 183 and the TC master station 22. Reference numeral 24 is a LAN (local area network) used for transmitting information between the TC master station 22, the main computer 11 and the system monitoring board controller 16, and is, for example, a duplicated Ethernet.

Next, the operation will be described. In the single-system power system monitoring and control system shown in FIG. 13, when equipment is added or modified at a controlled station such as a distribution substation, the external storage device 111 of the main computer 11 or the system monitoring panel controller 16 It is necessary to perform maintenance such as addition and correction on the database stored in the external storage device 161. The maintenance of the database is performed by stopping the online operation of the main computer 11 in the single system including only one main computer 11. The procedure of database maintenance in the single power system monitoring and control system will be described below. First, the source data of the database stored in the external storage device 111 connected to the main computer is transferred to the CRT 115 of the system console 114.
Then, the system maintenance staff adds or corrects the source data displayed by operating the keyboard. Next, the database generation program of the main computer 11 is activated to add / correct the source data that has been added / corrected to a database in a format that is easy for the online business program to use and store in the external storage device 111. This completes the generation of the new database.

Next, the TC simulation program of the main computer 11 is activated to cause a change in the TC position of the relevant equipment at the controlled station which caused the database maintenance. After that, control console A12, control console B13
Graphic CRT device 125, 126,
A single-line connection diagram of the controlled station is displayed on 135 and 136, and it is confirmed whether or not the display symbol corresponding to a physical device such as a circuit breaker matches the TC position.
This procedure is carried out for all the changed points, and if the display symbols corresponding to the devices and the TC positions are all the same, the confirmation work of the database using the TC simulation function of the main computer 11 is completed.

Next, in order to carry out the TC opposite test, the online operation of the system monitoring board controller 16 and the TC master station 22 is stopped, and the database newly created from the main computer 11 is used to create the database.
To the LAN via the LAN 24. Furthermore, only the TC slave station controlling the controlled station that caused the database maintenance and the TC master station 22 are connected, and other TC slave stations are disconnected. For example, in the case of carrying out the counter test for the i-th TC slave station 182, the graphic CRT devices 125, 126, 1 provided in the control console A12 and the control console B13.
A single-line diagram of the controlled station where the i-th TC slave station 182 is installed is displayed at 35 and 136 to instruct the operation of the equipment, for example, opening or closing of the circuit breaker. This device control signal is transmitted from the main computer 11 to the TC master station 22 via the LAN 24 and from the TC master station 22 to the i-th TC slave station 182. TC slave station 182 that received the device control signal
Controls the equipment of the controlled station that it is in charge of. For example, the circuit breaker is opened or closed. The status signal indicating the status of the controlled device is transmitted from the TC slave station 182 to the TC master station 2
2 is transmitted to the main computer 11 and the system monitoring board controller 16 via the LAN 24. The main computer 11, which has received the status signal of the controlled station controlled by the TC slave station 182, changes the status corresponding to the status signal,
For example, the open or closed state of the circuit breaker control console A12,
Graphic CRT device 12 provided on the control console B13
5, 126, 135, 136. Further, the system monitoring board controller 16 that has received the status signal of the controlled station controlled by the TC slave station 182 displays on the system monitoring board 15 a status change corresponding to the status signal, for example, an open state or a closed state of the circuit breaker. System operator is graphic CRT
The display of the devices 125, 126, 135, 136 or the display of the system monitoring board 15 is visually checked to confirm whether or not the device is normally controlled in response to the device control signal. The above procedure is performed for all the devices that have caused the database maintenance, and if all are normal, the TC facing test is completed. When the database maintenance, the confirmation using the TC simulation function, and the TC facing test are completed, the TC master station 22, the main computer 11, and the system monitoring board controller 16 are sequentially returned to the online operation.

[0006]

Since the conventional single-system power system monitoring and control system is shown in FIG. 13 and configured as described above, from the generation of a new database to the completion of the TC facing test for database maintenance. During this period, it is necessary to stop the online operation of the main computer 11, the grid monitor controller 16, and the TC master station 22 for a long time, and the original function of the system is lost during that time, so that the reliability of the power grid monitoring decreases. was there. In addition, system operators must perform unfamiliar backup operations (direct operation of distribution substations) before starting database maintenance, which not only increases the operational burden on system operators, but also increases the mental burden. There was a problem to do.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a single-system power system monitoring and control system capable of performing database maintenance while continuing online operation.

[0008]

According to a first aspect of the present invention, there is provided a power system supervisory control system comprising: a remote supervisory control device;
An external storage device and a single main computer are a single-system power system monitoring and control system connected to a LAN. An external storage device is provided with two database areas, an online database area and an offline database area, and stores an online database and an offline database, respectively. And L the maintenance calculator
This maintenance computer is used to connect to the AN and maintain the database. That is, the maintenance computer creates a new database using the offline database and transfers the created new database to the offline database area of the external storage device. The main computer updates the database by changing the pointer pointing to the database from the online database area to the offline database area during online operation.

A power system supervisory control system according to a second aspect of the present invention comprises a remote supervisory controller master station, a main computer, a man-machine computer that receives supervisory information from the main computer, and a system supervisory board. A single system monitoring panel control device for controlling is a single system power system monitoring control system connected to a LAN. Two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, man-machine computer, and system monitoring board control device, and the online database and the offline database are stored respectively. , Connect the maintenance computer to the LAN. The maintenance computer creates a new database using its own offline database, and transfers the created new database to the offline database areas of the external storage devices of the main computer, man-machine computer, and system monitoring board control device, respectively. The main computer,
The man-machine computer and the system monitoring board control device update the database by changing the pointer pointing to the database from the online database area to the offline database area during online operation.

According to a third aspect of the present invention, there is provided a power system supervisory control system comprising a remote supervisory controller master station, a main computer, a man-machine computer, and a system supervisory board for controlling the system supervisory board. The control device is a single-system power system monitoring and control system connected to the LAN. Two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, and the online database and the offline database are stored respectively. The maintenance computer connected to the LAN creates a new database using its own offline database, and the created new database is used for the external storage device offline of the main computer, man-machine computer, and system monitoring board control device, respectively. Transfer to each database area. After that, the main computer shifts the system from the normal mode to the normal simulation mode, and then uses the remote monitoring controller simulation function of the maintenance computer to perform a confirmation test in the main computer and the man-machine computer of the new database. Next, the main computer, man-machine computer, and system monitoring board control device change the pointer pointing to the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. It is to update.

In a power system supervisory control system according to a fourth aspect of the present invention, a remote supervisory controller master station, a main computer, a man-machine computer, and a system supervisory board controller are connected to a LAN. It is a connected single power system monitoring and control system. Two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, and the online database and the offline database are stored respectively. The maintenance computer connected to the LAN uses the self-owned offline database to create a new database, and the new database is used for the offline storage of the external storage devices of the main computer, man-machine computer, and system monitoring board control device. Transfer to each database area. After that, the main computer transitions the system from normal mode to normal simulation mode,
Perform a confirmation test in the main computer and man-machine computer of the new database using the remote monitoring control device simulation function of the maintenance computer, and after switching to the normal test mode, face the remote monitoring control device slave station. Run the test. Next, the main computer, man-machine computer, and system monitoring board control device change the pointer pointing to the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. It is to update.

In the electric power system supervisory control system according to a fifth aspect of the present invention, the remote supervisory control device master station, one main computer, a man-machine computer, and one system supervisory board control device are connected to the LAN. This is a single-system power system monitoring control system in which a remote monitoring control device master station and a remote monitoring control device slave station are connected by a transmission path. Two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, and the online database and the offline database are stored respectively. The maintenance computer connected to the LAN creates a new database using its own offline database, and the created new database is stored in the main computer, the man-machine computer, and the system monitoring board controller, and the external storage device is offline. Transfer to each database area. After that, the main computer transitions the system from the normal mode to the normal simulation mode, and then uses the remote monitoring controller simulation function of the maintenance computer to update the main database, the man-machine computer, and the system monitoring board controller of the new database. After performing the confirmation test in (1), the remote test mode is switched to the normal test mode, and one of the remote monitoring control device master stations is dedicated to the remote test and the remote test is performed with the remote monitoring control device slave station. Next, the main computer, man-machine computer, and system monitoring board control device change the pointer pointing to the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. It is to update.

According to a sixth aspect of the present invention, there is provided a power system supervisory control system in which at least two distant supervisory control device master stations, one main computer, a man-machine computer, and one system supervisory board control device. And are a single-system power system monitoring and control system connected to the LAN. Two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, man-machine computer, and system monitoring board control device,
Store online database and offline database respectively. The maintenance computer connected to the LAN creates a new database using its own offline database, and the created new database is stored in the main computer, the man-machine computer, and the system monitoring board controller, and the external storage device is offline. Transfer to each database area. After that, the main computer transitions the system from the normal mode to the normal simulation mode, and then performs a confirmation test in the main computer and man-machine computer of the new database using the remote monitoring controller simulation function of the maintenance computer, After shifting to the test mode, one of the distant monitoring control device master stations is dedicated to the test and an opposite test is executed with the distant monitoring control device slave station. Next, the main computer, man-machine computer, and system monitoring board control device change the pointer pointing to the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. It is to update.

According to a seventh aspect of the present invention, there is provided a power system supervisory control system in which at least two distant supervisory control device master stations, one main computer, a man-machine computer, and one system supervisory panel control device. Are connected to a LAN, and a remote monitoring control device master station and a remote monitoring control device slave station are connected by a transmission line in a single power system monitoring control system. Two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, and the online database and the offline database are stored respectively. The maintenance computer connected to the LAN uses the self-owned offline database to create a new database, and the new database is used for the offline storage of the external storage devices of the main computer, man-machine computer, and system monitoring board control device. Transfer to each database area. After that, the main computer transitions the system from the normal mode to the normal simulation mode, and then uses the remote monitoring controller simulation function of the maintenance computer to update the main database, the man-machine computer, and the system monitoring board controller of the new database. After performing the confirmation test in 1., the mode is switched to the normal test mode and the opposite test is executed with the remote monitoring control device slave station. Next, the main computer, man-machine computer, and system monitoring board control device change the pointer pointing to the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. It is to update.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. Embodiment 1. 1 is a diagram showing the configuration of a single-system power system monitoring and control system according to a first embodiment of the present invention. In the figure, 11 is a main computer that monitors and controls the power system under its control, 111 is an external storage device connected to the main computer 11, and a magnetic disk device or the like is used to store a database. 12 and 13 are main computer 1
The control console A, the control console B, 121, 122, 131, 132 which are connected to No. 1 and are operated by the system operator are man-machine EWS (engineering work station) (man-machine computer). It is installed on the desk B13 and is used by a system operator to display the system status and the like on a graphic CRT (G-CRT) device described later. Reference numerals 123, 124, 133, and 134 are external storage devices such as magnetic disk devices provided in the man-machine EWSs 121, 122, 131, and 132, and stores databases. 125, 126, 135 and 136 are graphic C provided on the control console A12 and the control console B13.
It is an RT (G-CRT) device, and the man-machine EWS 121, 122, 131, 132 controls and displays a single-line connection diagram of a controlled place, a result of system monitoring performed by the main computer 11, and the like. Reference numeral 15 is a system monitoring panel, 16 is a system monitoring panel controller (system monitoring panel controller) that controls the status display of the controlled station such as the open / closed state of the circuit breaker and the bus voltage to the system monitoring panel 15, and 161 is the system monitoring panel. It is an external storage device such as a magnetic disk device connected to the controller 16 and stores a database. Reference numeral 17 is a maintenance EWS (maintenance computer) for performing database maintenance work, 171 is an EWS main body, 172 is an external storage device such as a magnetic disk device connected to the EWS 171,
The database is stored. 173 is a maintenance EW
Graphic CRT device (G-CR
T), the source data used for database maintenance is displayed. 181, 182, 183 are the first, i-th, and n-th TC slave stations (remote monitoring control devices), and 19 is a plurality of TC slave stations 181, 182, 183.
ITC parent station (ITC: intelligent tele-con)
trol, remote monitoring control device), for example HDLC
A (high level data link control) type remote monitoring controller detects a change in the state of the controlled station and sends it to the main computer 11, or sends an operation command from the main computer 11 to the controlled station to execute the operation. To do 201, 202, 203 are a plurality of TC slave stations 181, 182, 183 and ITC master station 1
9 is a transmission line provided between Reference numeral 21 designates the ITC master station 19, the main computer 11, and the system monitoring board controller 16
It is a LAN used for transmitting information to and from, for example, duplex Ethernet. 25 is the main computer 11, maintenance EWS 17, and man-machine EW
S121, 122, 131, 132 L connecting between each other
An AN, such as a duplexed Ethernet.

In the single-system power system monitoring and control system according to the first embodiment, a maintenance EWS 17 is installed for database maintenance, and the external storage device 111 of the main computer 11 and the external storage device 161 of the system monitoring panel controller 16 are installed. , And man-machines EWS121, 122, 131 installed on the control console A12 and the control console B13,
132 external storage devices 123, 124, 133, 134
In the database area of, two types of areas, an online database area (hereinafter, also referred to as “on area”) and an offline database area (hereinafter, also referred to as “sub area”) are provided, and the online database is provided in each area. And stores the offline database. The maintenance EWS 17 is the main computer 1
1, system monitoring board controller 16, and control console A1
2. Man-machine EWS12 installed on the control console B13
1, 122, 131 and 132 are connected to LANs 21 and 25.

Next, the operation will be described. First, the operation mode of the power system supervisory control system will be described with reference to FIG. The operation modes include (1) regular mode, (2) regular test mode, (3) regular SIM (simulation) mode,
There are five modes: (4) work mode and (5) stop mode. This operation mode includes man-machines EWS121, 122, 131, 13 installed on the main computer 11, the system monitoring board controller 16, the control console A12, and the control console B13.
2. Applied to maintenance EWS 17 and ITC master station 19. On the other hand, the work performed by the power system monitoring and control system includes (a) online work and (b) database maintenance
There are two types of work: test work (database maintenance). The online work is a normal work performed by the system such as monitoring, operation, and recording, and is executed in the normal mode, the normal test mode, and the normal SIM mode, but is not executed in the work mode and the stop mode. Database maintenance / testing (database maintenance) is performed according to the following procedure. When the cause of database maintenance such as equipment expansion / modification at the controlled station occurs, first, maintenance EWS1 in normal mode
After making correction input to the off-line database by 7 and generating / equivalent work of the off-line new database, the system is shifted to the regular SIM mode. Maintenance EWS17 TC under regular test mode
Start the simulation program and perform an internal check to see if the new offline database works properly in the power system monitoring and control system. If it is confirmed that the new offline database works properly, put the system in normal test mode. The TC slave station of the controlled station that has caused the transition and caused the database maintenance is connected to the ITC master station 19 via the transmission line, and further, the main computer 1 is connected via the LAN 21.
1, system monitoring board controller 16, control console A12, man machine EWS121, 12 installed in control console B13
Connect to 2, 131, 132 and perform on-site test. When this on-site test is completed normally, the system is switched to the normal mode, the online database for operation is switched to the new database for offline, and thereafter, the power system monitoring and control system uses the new database to continue online operations.

Next, the movement of the online database and the offline database in the database maintenance work will be described with reference to FIG. In the following, in order to facilitate understanding, the description will focus on the maintenance EWS 17 and the main computer 11. First maintenance EWS
The source data of the current database is displayed on the screen 17 of the graphic CRT 173, data input (processing 31) such as addition / change is performed, and the result is stored as the source database 32 in the external storage device 172 of the maintenance EWS 17. . Next maintenance EWS
The database generation program 17 is activated, a new database in a format accessible by the business program is generated by referring to the source database 32 (process 33), and the new database is stored in the external storage device 172 of the maintenance EWS 17 as the generation database 34. Next maintenance EWS1
7 is started, and the generation database 34 stored in the external storage device 172 of the maintenance EWS 17 is stored in the external storage device 11 of the main computer 11.
1 sub area (offline database area) 1
13 (processing 35, database equivalence will be described later). Online business programs operating in the regular mode, regular test mode, and regular SIM mode of the main computer 11 access only the database in the on area 112 (process 38), but check the database in the regular test mode and regular SIM mode. The offline work program that operates for testing is s
Only the database in the ub area 113 is accessed (process 37). When all the tests of the new database are completed, the online database and the offline database are switched (process 36). The database switching is performed instantaneously because it is realized only by changing the pointer that points to the database storage area, rather than moving the actual database (storage area). Also, this switching is executed during the transition from the regular test mode to the regular mode. During this time, the business program is on standby both online and offline, and after transitioning to the regular mode,
The system will continue online operations using the new database. Therefore, the database can be updated without stopping the online operation.

As described above, database maintenance in the power system monitoring and control system according to the present invention is
(1) Data input, (2) Source database generation,
It is performed through each procedure of (3) generation of new database, (4) equivalence of generated database, (5) confirmation test of generated database, and (6) switching of database. Each procedure will be described in detail below.

Data input, source database generation,
And maintenance of EWS17
The new database thus generated can be completely implemented in the maintenance EWS 17 and is stored in the external storage device 172. As shown in FIG. 4, the system maintenance staff performs maintenance E
The external storage device 172 of the WS 17 is accessed, and the stored source data of the working database is displayed on the graphic CRT device (G-CRT 173 in FIG. 1) (step a). System maintenance personnel add to the displayed source data by operating the keyboard or mouse.
A source database is created by inputting data such as changes and is stored in the external storage device 172. Then, the database generation program is started, a new database in a format accessible by the online business program is generated by referring to the source database, and the new database is stored in the external storage device 172.

Next, the procedure for making the generated database equivalent to the external storage device of each computer in the control station will be described with reference to FIG. Database equivalence means maintenance EWS17
Of the external storage devices 111, 123, 133, 161 connected to the respective computers 11, 121, 131, 16 with the generated database stored in the external storage device 172 of
It is to transfer to the area (offline database area). Man-machine EWS installed on control console A12
The external storage device 123 of 121 and the external storage device 133 of the man-machine EWS 131 installed in the control console B13 are transferred from the maintenance EWS 17 to the sub areas 129 and 139 via the LAN 25 (steps a and b). . The external storage device 111 of the main computer 11 is transferred to the sub area 113 via the LAN 21 (steps a and c). System monitoring board controller 16
Is transferred to the sub area 163 via the LAN 21 (steps a, d). The database equivalence is completed through the above steps.

Next, the confirmation test of the generated database using the TC simulation function in the normal SIM mode will be described with reference to FIG. Here is the man-machine EW
In S121, the man-machine EWS131 is used for confirmation test while continuing the online operation, and as a test item, the i-th TC slave station 182 controls the circuit breaker of the controlled station that causes the database maintenance to be closed. Take the operation of setting to the state as an example. First, the database stored in the sub area 139 of the external storage device of the man-machine EWS 131 is accessed to access the graphic CRT device (see FIG. 1).
The G-CRT 135) shown in FIG.
Display the single-line diagram of the controlled station controlled by (step a),
Command the closing operation of the circuit breaker by operating the mouse. This command is transmitted from the man machine EWS 131 to the main computer 11 via the LAN 25 (step b). The main computer 11 that received the command is the sub area 1 of the external storage device 111.
The database stored in 13 is accessed (step c), the TC position of the circuit breaker at the i-th controlled station is taken out, a closing operation is added to this, and the TC position is transmitted to the maintenance EWS 17 via the LAN 21 ( Step d).
In the maintenance EWS 17, the TC simulation function is activated, and when the command is received, the TC simulation function accesses the new database stored in the external storage device 172 (step e) and sets the state of the circuit breaker to the closed state. The TC position of the circuit breaker and the closed state are set to LA.
It is returned to the main computer 11 via N21 (process f).
The main computer 11 uses the received TC position information to generate a sub
The new database stored in the area 113 is accessed (step g), the closed state is added to the information of the i-th controlled circuit breaker, and then the information is transmitted to the man-machine EWS 131 via the LAN 25. Do (stroke h). Upon receiving this information, the man-machine EWS 131 accesses the new database stored in the sub area 139 of the external storage device 133 (step i), and is displayed on the graphic CRT device (G-CRT 135, 136 in FIG. 1). Change the circuit breaker in the single-line diagram of the i-th controlled station to the closed state. In this way, if the result of the closing operation command issued from the control console B13 to the circuit breaker at the i-th controlled station displayed on the graphic CRT device (G-CRTs 135 and 136 in FIG. 1) is correctly displayed. It is confirmed that the data regarding the circuit breaker of the i-th controlled station in the new database stored in the sub area 139 of the external storage device 133 is correctly updated. The above procedure is performed for all the devices that have caused the database maintenance. If all the results are accurate, it is confirmed that the new database has been created normally.

Next, the opposite test between the power system supervisory control system and the controlled station in the normal test mode will be described with reference to FIG. Here, the man-machine EWS121 continues to operate online, and the man-machine EWS13
1 is used for the on-site opposite test, and an operation of opening the circuit breaker of the controlled station, which is the cause of the database maintenance, controlled by the i-th TC slave station 182 as a test item is taken as an example. First, by accessing the new database stored in the sub area 139 of the external storage device connected to the man-machine EWS 131, the graphic CRT device (G-CRT 135 in FIG. 1) is connected to the i-th controlled station with a single-line diagram. Is displayed (stroke a), and an instruction to open the breaker is issued by operating the mouse. This command is Man Machine EWS
The data is transmitted from 131 to the main computer 11 via the LAN 25 (step b). Upon receiving the command, the main computer 11 accesses the new database stored in the sub area 113 of the external storage device 111 (step c), retrieves the TC position of the circuit breaker of the i-th controlled station, and opens it. ITC master station 19 via LAN21 after adding operation
To (step d). The ITC master station 19 that has received the command from the main computer 11 recognizes that the command is for the on-site test, and activates the sub ITC program 192 to cause the i-th TC slave station 182 to execute this program 19.
From 2 through the transmission line 202, an instruction to open the circuit breaker is issued (step e). I-th TC slave station 182 that received the command
Performs the circuit breaker opening operation. When the circuit breaker is opened at the i-th controlled station, the information is transmitted from the i-th TC slave station 182 to the ITC master station 19 via the transmission path 202 (step f). ITC for sub that received this information
The program 192 sends the information that the circuit breaker at the i-th controlled station is in the open state via the LAN 21 to the main computer 11
And to the system monitoring board controller 16 (step g). The main computer 11 that has received the information is the external storage device 11
The new database stored in the sub area 113 of No. 1 is accessed (step h), the information of the circuit breaker of the i-th controlled station is added with the open state, and then the LAN is created.
It transmits to the man machine EWS131 via 25 (process i). Man machine EWS131 which received this information
Accesses the new database stored in the sub area 139 of the external storage device 133 (step j), and the i-th
The display of the circuit breaker of the graphic CRT device (G-CRT 135 of FIG. 1) displaying the single-line diagram of the th controlled station is changed to the open state. Man Machine E
If the result of the opening operation command issued from the WS 131 to the circuit breaker of the i-th controlled station is correctly displayed, the i-th controlled object of the new database stored in the sub area 139 of the external storage device 133 is displayed. It is confirmed that the data on the circuit breakers at the control station are updated correctly. The above procedure is performed for all the devices that have caused the database maintenance. If all the results are accurate, it is confirmed that the new database has been created normally.
Further, the system monitoring board controller 16 that has received the information from the ITC master station 19 is also the sub area 1 of the external storage device 161.
The new database stored in 63 is accessed (stroke k), the state of the circuit breaker at the i-th controlled station is converted to open, and then the display of the corresponding symbol on the system monitoring panel 15 is changed to open. . In this way, if the result of the opening operation command issued from the man-machine EWS 131 to the circuit breaker of the i-th controlled station is correctly reflected in the system monitoring board 15, it is stored in the sub area 163 of the external storage device 161. It is confirmed that the data on the circuit breaker of the i-th controlled station in the new database is updated correctly. If the above procedure is performed for all the devices that caused the database maintenance and all the results are normal,
It is confirmed that the new database has been created correctly.

Next, switching of databases will be described with reference to FIG. First, the man-machine EWS 121 or the man-machine EWS 131 instructs to switch the operation mode of the main computer 11 from the regular test mode to the regular mode. Main computer 11, man-machine EWS121, man-machine EWS131, system monitoring board controller 16, and maintenance EWS1 during switching of operation modes
Reference numeral 7 changes the pointing destination of the pointer for the online database from the on area where the current database is stored to the sub area where the new database is stored, and the pointing destination of the pointer for the offline database is su.
Change from b area to on area. This allows the new database stored in the sub area after the test is completed to be used for online. The switching of the database is completed instantly because it does not move the entity storing the database but only changes the pointer destination. Further, since the main computer 11 does not issue an online business request during the transition of the operation mode, the online business can immediately access the new database and continue from the time when the transition to the regular mode is completed.

As described above, in the first embodiment, the maintenance EWS 17 is installed for maintenance of the database in the single system power system monitoring control system, and the external storage device 111 of the main computer 11 and the system monitoring panel controller 16 are installed. External storage device 161 and control console A
12. Man-machine EWS12 installed on the control console B13
External storage devices 123, 1 of 1, 122, 131, 132
24, 133, and 134 are provided with two types of databases, an online database and an offline database. The maintenance EWS 17 includes the main computer 11, the system monitoring board controller 16, and the control console A.
12. Man-machine EWS12 installed on the control console B13
1, 122, 131 and 132 are connected to LANs 21 and 25. Normal online work is performed by accessing the online database. In the database maintenance, first, the maintenance EWS 17 is used to input data, create a new database, and perform database equalization. Internal confirmation of new database is SIM
Mode, using the TC simulation function of the maintenance EWS17. The face-to-face test between the power system supervisory control system and the controlled station is performed in the normal test mode, for example, from the man machine EWS of the control console B13 to the main computer 11, LAN 21, ITC master station 19, transmission line 20.
2, and sends a command to the controlled station via the TC slave station 182, receives the state change information of the controlled station by the reverse route, and outputs the main computer 11 and the man-machine EWS131 of the control console B13.
And the system monitoring board controller 16 accesses the off-line database of each external storage device 111, 133, 161. If the test result confirms that the new database is created normally, switch the database. The database is switched instantaneously by mutually changing the pointer between the online database and the offline database. Since the first embodiment is configured as described above, database maintenance / test work, that is, database maintenance can be performed without stopping online operation in the single-system power system monitoring and control system. A single power system monitoring and control system with the same reliability as the system can be realized.

Embodiment 2. FIG. 8 is a diagram showing the configuration of a single-system power system supervisory control system according to the second embodiment of the present invention. In FIG. 8, the main computer 11, the external storage device 111, the man-machine EWSs 121 and 131, the external storage devices 123 and 133, the system monitoring board 15, the system monitoring board controller 16, the external storage device 161, and the maintenance E.
WS 17, external storage device 172, first, i-th,
Nth TC slave station 181, 182, 183, ITC master station 19, transmission lines 201, 202, 203, LAN 21,
Since the LAN 25 and the LAN 25 are the same as those shown in FIG. 5 showing the first embodiment, the same reference numerals are given and the description thereof is omitted.

In the first embodiment shown in FIG. 5, the TC simulation function of the maintenance EWS 17 returns answer information only to the main computer 11 (step f). In the second embodiment, as shown in FIG.
The TC simulation function 17 returns the answer information to the main computer 11 (step f) and also to the system monitoring board controller 16 (step j). Upon receiving the answer information, the system monitoring panel controller 16 accesses the new database stored in the sub area 163 from the TC position information in the answer information (step k), and uses the information on the circuit breaker of the i-th controlled station as the information. Information indicating the closed state is created to control the display on the system monitoring board 15 (step m). On the other hand, the man-machine EWS 131 performs the same operation as that of the first embodiment, and closes the breaker display in the single-line diagram of the i-th controlled station displayed on the graphic CRT device (G-CRT135 in FIG. 1). Change to state.

According to the second embodiment, the man-machine E
Graphic CRT device of WS131 (G-CR of FIG. 1
Since the same display contents as (T135) are also displayed on the system monitoring panel 15, it is possible to confirm whether or not they match each other at an early stage of the database maintenance work.

Embodiment 3. FIG. 9 is a diagram showing the configuration of a single-system power system monitoring control system according to the third embodiment of the present invention. In FIG. 9, the main computer 11, the external storage device 111, the control console A12, the control console B13, the man-machine EWS 121, 122, 131, 132, the external storage device 123, 124, 133, 134, the graphic CRT.
Device (G-CRT) 125, 126, 135, 136,
System monitoring board 15, system monitoring board controller 16, external storage device 161, maintenance EWS 17, EWS main body 1
71, external storage device 172, graphic CRT device (G-CRT) 173, TC slave stations 181, 182, 18
Since 3 is the same as that of the first embodiment shown in FIG. 1, the same reference numerals are given and detailed description will be omitted. In the third embodiment, as shown in FIG. 9, two ITC master stations A (remote monitoring control device) 193 and an ITC master station B (remote monitoring control device) 194 are provided and duplexed.

In the third embodiment, data input,
The process of generating the source database, generating the new database, and making the generated database equivalent is performed through the same procedure as in the first embodiment. The same applies to database switching. The confirmation test of the generated database will be described below.

A confirmation test of the generated database using the TC simulation function in the normal SIM mode will be described with reference to FIG. Here is Man Machine EWS
121 is a man-machine E while continuing online operation
WS131 is used for confirmation test, and the i-th test item is used.
The operation of closing the circuit breaker of the controlled place that caused the database maintenance, which is controlled by the second TC slave station 182, is taken as an example. First, the database stored in the sub area 139 of the external storage device 133 of the man-machine EWS 131 is accessed to control the graphic CRT device (G-CRT 135 shown in FIG. 9) controlled by the i-th TC slave station 182. The single line connection diagram of the place is displayed (stroke a), and the closing operation of the circuit breaker is instructed by operating the mouse. This command is issued from the man machine EWS131 to LAN25.
Is transmitted to the main computer 11 via (step b). The main computer 11 that receives the command is a sub of the external storage device 111.
The database stored in the area 113 is accessed (step c), the TC position of the circuit breaker at the i-th controlled station is taken out, the closing operation is added to this, and then the LAN is added.
It transmits to maintenance EWS17 via 21 (process d). In the maintenance EWS 17, the TC simulation function is activated, and when the command is received, the TC simulation function accesses the new database stored in the external storage device 172 (step e) and sets the state of the circuit breaker to the closed state. The TC position and closed state of the circuit breaker are returned to the main computer 11 via the LAN 21 (step f). The main computer 11 accesses the new database stored in the sub area 113 from the received TC position information (stroke g), and creates information in which the closed state is added to the information on the circuit breaker at the i-th controlled station. Later LAN2
It transmits to the man machine EWS131 via 5 (process h). Upon receiving this information, the man-machine EWS 131 accesses the new database stored in the sub area 139 of the external storage device 133 (step i), and the i-th displayed on the graphic CRT device (G-CRT 135 in FIG. 9). Change the circuit breaker display in the single-line diagram of the controlled station to the closed state. In this way man machine EWS131
From the graphic CRT device (G-CRT13 in FIG. 9
If the result of the closing operation command given to the circuit breaker of the i-th controlled station displayed in 5) is correctly displayed, the number of the new database stored in the sub area 139 of the external storage device 133 is displayed. It is confirmed that the data regarding the circuit breaker at the i-th controlled station is updated correctly. The above procedure is performed for all the devices that have caused the database maintenance. If all the results are accurate, it is confirmed that the new database has been created normally.

Next, the opposite test between the power system supervisory control system and the controlled station in the normal test mode according to the third embodiment will be described with reference to FIG. Here, the man-machine EWS 131 and the ITC master station B 194 are designated for the on-site on-site test, and the i-th TC slave station 182 controls the tester to open the circuit breaker at the controlled station that caused the database maintenance. Take the operation as an example. First, the new database stored in the sub area 139 of the external storage device 133 connected to the man machine EWS 131 is accessed, and the graphic CRT device (G-CRT 135 in FIG. 9) is connected to the single line of the i-th controlled station. A diagram is displayed (stroke a), and an instruction to open the circuit breaker is issued by operating the mouse. This command is Man Machine EWS
The data is transmitted from 131 to the main computer 11 via the LAN 25 (step b). Upon receiving the command, the main computer 11 accesses the new database stored in the sub area 113 of the external storage device 111 (step c), extracts the TC position of the circuit breaker of the i-th controlled station, and opens it. ITC master station B1 via LAN21 after adding operation
94 (step d). The ITC master station B 194 that has received the command from the main computer 11 is the i-th TC slave station 18
2 is instructed to open the circuit breaker via the transmission path 208 (step e). The i-th TC slave station 182 that has received the command executes the operation of opening the circuit breaker. When the circuit breaker is opened at the i-th controlled station, the information is transmitted from the i-th TC slave station 182 to the ITC master station B194 via the transmission path 208 (step f). ITC master station B that received this information
194 transmits the information that the circuit breaker at the i-th controlled station is in the open state to the main computer 11 and the system monitoring board controller 16 via the LAN 21 (step g). The main computer 11 that has received the information accesses the new database stored in the sub area 113 of the external storage device 111 (step h) and adds the open state to the information of the circuit breaker of the i-th controlled station. Is transmitted to the man machine EWS 131 via the LAN 25 (step i). Upon receiving this information, the man-machine EWS 131 accesses the new database stored in the sub area 139 of the external storage device 133 (step j), and the graphic showing the single-line diagram of the i-th controlled station is displayed. The display of the circuit breaker of the CRT device (G-CRT135 in FIG. 9) is changed to the open state. In this way, if the result of the opening operation command issued from the man-machine EWS 131 to the circuit breaker at the i-th controlled station is correctly displayed, the s of the external storage device 133 is displayed.
It is confirmed that the data regarding the circuit breaker of the i-th controlled station in the new database stored in the ub area 139 is updated correctly. The above procedure is performed for all the devices that have caused the database maintenance. If all the results are accurate, it is confirmed that the new database has been created normally. Further, the system monitoring board controller 16 that has received the information from the ITC master station B194 also accesses the new database stored in the sub area 163 of the external storage device 161 (step k), and the circuit breaker of the i-th controlled station. After the state of is converted to open, the display of the corresponding symbol on the system monitoring board 15 is changed to open. In this way, from the control console B13 to the graphic CRT
If the result of the opening operation command issued to the circuit breaker of the i-th controlled station displayed on the device (G-CRT 135, 136 in FIG. 9) is correctly reflected on the system monitoring panel 15, the external storage device It is confirmed that the data regarding the circuit breaker of the i-th controlled station in the new database stored in the sub area 163 of 161 is updated correctly. The above procedure is performed for all the devices that have caused the database maintenance. If all the results are normal, it is confirmed that the new database has been correctly created.

According to the third embodiment, two ITCs are used.
Since the master station A193 and the ITC master station B194 are provided and duplicated, separate the two ITC master stations A193 and ITC master station B194 in the on-site on-site test at the time of database maintenance. Since the counter test can be performed independently of online work, the safety of the counter test can be improved.

Fourth Embodiment FIG. 12 is a diagram showing the configuration of a single-system power system monitoring control system according to the fourth embodiment of the present invention. In FIG. 12, the main computer 11, the external storage device 111, the man-machine EWS 121, 131, the external storage devices 123, 133, the system monitoring board 15 system monitoring board controller 16, the external storage device 161, the maintenance EWS 17, the external storage device 172, the TC. Child station 181,1
82, 183, ITC master station A 193, and ITC master station B 194 are the same as those in the third embodiment shown in FIG.

In the third embodiment shown in FIG. 10, the TC simulation function of the maintenance EWS 17 returns answer information only to the main computer 11 (step f). In the fourth embodiment, as shown in FIG.
The TC simulation function of the WS 17 returns the answer information to the main computer 11 (step f) and also to the system monitoring board controller 16 (step j). The grid monitoring panel controller 16 that has received the answer information determines the sub area 163 from the TC position information in the answer information.
Access the new database stored in (step k), and control the display of the system monitoring board 15 by creating information in which the closed state is added to the information of the circuit breaker at the i-th controlled place (step m). ). On the other hand, the man-machine EWS131 performs the same operation as that of the first embodiment, and closes the display of the circuit breaker in the single-line diagram of the i-th controlled station displayed on the graphic CRT device (G-CRT135 in FIG. 9). Change to state.

According to the fourth embodiment, the man-machine E
WS131 graphic CRT device (G-CR in FIG. 9)
Since the same display contents as (T135) are also displayed on the system monitoring panel 15, it is possible to confirm whether or not they match each other at an early stage of the database maintenance work.

[0037]

As described above, according to the first aspect of the invention, the remote monitoring control device, the external storage device storing the database, and the single main computer are connected to the LAN to form a single system. In the power system monitoring and control system of, the external storage device is provided with two database areas, an online database area and an offline database area,
Store online database and offline database respectively. A maintenance computer for database maintenance is connected to the LAN, and database maintenance is performed using this maintenance computer. That is, the maintenance computer creates a new database using the offline database and transfers the created new database to the offline database area of the external storage device. Since the main computer is configured to update the database by changing the pointer pointing to the database from the online database area to the offline database area during online operation, database maintenance can be performed without stopping online operation. Therefore, there is an effect that a single system power system monitoring and control system having the same reliability as the dual system can be realized.

According to the second aspect of the present invention, the remote monitoring control device master station, one main computer, a man-machine computer for receiving monitoring information from the main computer, and one unit for controlling the system monitoring board are provided. In the single-system power system monitoring and control system in which the system monitoring panel control device is connected to the LAN, the main computer,
Two database areas, an online database area and an offline database area, are provided in the external storage devices of the man-machine computer and the system monitoring panel control device, and the online database and the offline database are stored respectively, and the database maintenance is performed. Maintenance calculator for the above LA
Connect to N. The maintenance computer creates a new database using its own offline database,
Transfer the generated new database to the off-line database areas of the external storages of the main computer, man-machine computer, and system monitoring board controller, and operate the main computer, man-machine computer, and system monitoring board controller online. Since the database is configured to be updated by changing the pointer that points to the database from the online database area to the offline database area, the database can be updated without stopping the online operation in the single system power system supervisory control system. Since the maintenance / test work of the above, that is, the database maintenance can be performed, there is an effect that it is possible to realize a single power system supervisory control system having the same reliability as the dual system.

According to the third aspect of the present invention, the remote monitoring control device master station, one main computer, the man-machine computer, and one system monitoring panel control device for controlling the system monitoring panel are LAN. In a single-system power system monitoring and control system connected to a computer, two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, man-machine computer, and system monitoring panel control device, respectively. A database for online and a database for offline are stored respectively. The maintenance computer connected to the LAN creates a new database using its own offline database, and the created new database is used for the external storage device offline of the main computer, man-machine computer, and system monitoring board control device, respectively. Transfer to each database area. After that, the main computer shifts the system from the normal mode to the normal simulation mode, and then uses the remote monitoring controller simulation function of the maintenance computer to perform a confirmation test in the main computer and the man-machine computer of the new database. Next, the main computer, man-machine computer, and system monitoring board controller change the pointer pointing to the database from the online database area to the offline database area while the system is returning from the normal simulation mode to the normal mode. Since the updating is performed, there is an effect that the operation of the remote monitoring control device can be confirmed without stopping the online operation in the single power system monitoring control system.

According to the fourth aspect of the present invention, the remote monitoring control device master station, one main computer, man-machine computer, and one system monitoring panel control device are connected to the LAN to form a single system. In the power system supervisory control system of the above, two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, respectively. Store each offline database. The maintenance computer connected to the LAN uses the self-owned offline database to create a new database, and the new database is used for the offline storage of the external storage devices of the main computer, man-machine computer, and system monitoring board control device. Transfer to each database area. After that, the main computer transitions the system from the normal mode to the normal simulation mode, and then performs a confirmation test in the main computer and the man-machine computer of the new database using the remote monitoring controller simulation function of the maintenance computer. After switching to the normal test mode, the opposite test is executed with the remote monitoring and control device slave station.
Next, the main computer, man-machine computer, and system monitoring board control device change the pointer of the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. Since the updating is performed, there is an effect that the operation of the remote monitoring control device slave station that controls the controlled station can be confirmed without stopping the online operation in the single power system monitoring control system.

According to the invention described in claim 5, the remote monitoring control device master station, one main computer, the man-machine computer, and one system monitoring panel control device are connected to the LAN,
Remote monitoring and control device In a single-system power system monitoring and control system in which a master station and a remote monitoring and control device slave station are connected by a transmission line, an external storage device included in each of the main computer, man-machine computer, and system monitoring panel control device 2 for online database area and offline database area
One database area is provided to store the online database and the offline database. The maintenance computer connected to the LAN creates a new database using its own offline database, and the created new database is stored in the main computer, the man-machine computer, and the system monitoring board controller, and the external storage device is offline. Transfer to each database area. After that, the main computer transitions the system from normal mode to normal simulation mode,
After performing confirmation tests in the main computer, man-machine computer, and system monitoring board controller of the new database using the remote monitoring controller simulation function of the maintenance computer, the remote monitoring controller is switched to the normal test mode. One of the master stations is dedicated to the facing test, and the facing test is executed with the remote monitoring control device slave station. Next, the main computer, man-machine computer, and system monitoring board control device change the pointer of the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. Since it is configured to update, the same content displayed on the display unit of the man-machine computer is also displayed on the system monitoring panel, so it is confirmed at an early stage of database maintenance work whether the two match. There is an effect that can be.

According to the invention described in claim 6, at least two remote monitoring control device master stations, one main computer, a man-machine computer, and one system monitoring panel control device are LA.
In the single-system power system monitoring and control system connected to N, the main computer, the man-machine computer, and the external storage devices of the system monitoring panel control device each have an online database region and an offline database region in the external storage device.
One database area is provided to store the online database and the offline database. The maintenance computer connected to the LAN creates a new database using its own offline database, and the created new database is stored in the main computer, the man-machine computer, and the system monitoring board controller, and the external storage device is offline. Transfer to each database area. After that, the main computer transitions the system from normal mode to normal simulation mode,
After performing a confirmation test in the main computer and man-machine computer of the new database using the remote monitoring control device simulation function of the maintenance computer, and after switching to the normal test mode, switch to the normal mode and the remote monitoring controller master station One of them is dedicated to the facing test, and the facing test is executed with the remote monitoring control device slave station. Then the main computer,
The man-machine computer and the system monitoring board control unit update the database by changing the pointer pointing to the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. Since the remote monitoring and control device master station is duplicated, it is possible to separate the two remote monitoring and control device master stations for online business and on-site test in the on-site on-site test during database maintenance. Since the on-site test can be performed independently of online business, there is an effect that the safety of the on-site test can be enhanced.

According to the invention described in claim 7, at least two remote monitoring control device master stations, one main computer, a man-machine computer, and one system monitoring panel control device are LA.
In a single-system power system supervisory control system connected to N, a remote supervisory controller master station and a remote supervisory controller slave station are connected by a transmission line, a main computer, a man-machine computer, and a system supervisory panel controller are Two database areas, an online database area and an offline database area, are provided in the respective external storage devices, and the online database and the offline database are stored respectively. The maintenance computer connected to the LAN uses the self-owned offline database to create a new database, and the new database is used for the offline storage of the external storage devices of the main computer, man-machine computer, and system monitoring board control device. Transfer to each database area. After that, the main computer transitions the system from the normal mode to the normal simulation mode, and then uses the remote monitoring controller simulation function of the maintenance computer in the main computer of the new database,
After performing a confirmation test in the man-machine computer and in the system monitoring board control device to shift to the normal test mode, the mode is switched to the regular test mode and the opposite test is executed with the remote monitoring control device slave station. Next, the main computer, man-machine computer, and system monitoring board control device change the pointer of the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. Since it is configured to update, the same content displayed on the display unit of the man-machine computer is also displayed on the system monitoring panel, so it is confirmed at an early stage of database maintenance work whether the two match. There is an effect that can be.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a single-system power system monitoring control system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an operation mode of the power system supervisory control system.

FIG. 3 is a diagram showing movements of an online database and an offline database in database maintenance work.

FIG. 4 is a diagram showing a procedure in which the generation database is equivalent to an external storage device of each computer in the power system monitoring and control system.

FIG. 5 is a diagram showing a procedure of a confirmation test of a generated database using a TC simulation function in a common SIM mode.

FIG. 6 is a diagram showing a procedure of an on-site on-site test between the power system supervisory control system and the controlled station in the normal test mode.

FIG. 7 is a diagram showing switching of databases.

FIG. 8 is a diagram showing the configuration of a single-system power system supervisory control system according to a second embodiment of the present invention.

FIG. 9 is a diagram showing the configuration of a single-system power system monitoring and control system according to a third embodiment of the present invention.

FIG. 10 is a diagram showing a procedure of a confirmation test of a generated database using a TC simulation function in a common SIM mode.

FIG. 11 is a diagram showing the procedure of an on-site on-site test between the power system supervisory control system and the controlled station in the normal test mode according to the third embodiment.

FIG. 12 is a diagram showing the configuration of a single-system power system monitoring and control system according to a fourth embodiment of the present invention.

FIG. 13 is a diagram showing a configuration of a conventional single-system power system monitoring and control system.

[Explanation of symbols]

11 main computer, 16 system monitoring board controller (system monitoring board control device), 17 maintenance EWS (maintenance computer), 19,193,194 ITC master station (remote monitoring control device) 21,25 LAN, 111,
123, 124, 133, 134, 161, 172 External storage device, 121, 122, 131, 132 Man-machine EWS (man-machine computer), 181, 182, 1
83 TC slave station (remote monitoring control device).

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H02J 3/00-5/00 H02J 13/00-13/00 311

Claims (7)

(57) [Claims] 1. A remote monitoring control device for monitoring and controlling a controlled station, an external storage device storing a database concerning the controlled station, and the remote monitoring control device while accessing the database. A single-system power system monitoring and control system in which one main computer that performs online work is connected to a LAN, and two database areas, an online database area and an offline database area, are provided in the external storage device. , An online database and an offline database are respectively stored, a maintenance computer for database maintenance is connected to the LAN, and the main computer performs online business while accessing the online database of the external storage device. Maintenance calculator A new database is generated using the offline database, the generated new database is transferred to the offline database area of the external storage device, and the main computer points a pointer to the database during online operation to the online database area. The power system monitoring and control system is characterized in that the database is updated by changing from the above to the offline database area. 2. A distant monitoring control device master station for monitoring and controlling a controlled station and one remote operation control device master station for performing online business while accessing a database concerning the controlled station. Single-system power system monitoring control in which a main computer, at least one man-machine computer that receives monitoring information from the main computer, and one system monitoring panel control device that controls the system monitoring panel are connected to a LAN In the system, two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, respectively. Stores each offline database and maintains the database for maintenance. Connected to the LAN, the main computer performs online business while accessing the self-owned online database, and the maintenance computer creates a new database using the self-owned offline database. The database is transferred to the off-line database areas of the external storage devices that the main computer, the man-machine computer, and the system monitoring board control device respectively have, and the main computer, the man-machine computer, and the system monitoring board are transferred. The control system updates the database by changing the pointer pointing to the database from the online database area to the offline database area during online operation. 3. A remote supervisory controller master station for monitoring and controlling a controlled station and one remote supervisory controller master station performing online business while accessing a database concerning the controlled station. Single-system power system monitoring control in which a main computer, at least one man-machine computer that receives monitoring information from the main computer, and one system monitoring panel control device that controls the system monitoring panel are connected to a LAN In the system, two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, respectively. Stores each offline database and maintains the database for maintenance. Connected to the LAN, the main computer performs online business while accessing the self-owned online database, and the maintenance computer creates a new database using the self-owned offline database. The database is transferred to the off-line database areas of the external storage devices respectively possessed by the main computer, the man-machine computer, and the system monitoring panel control device, and the main computer transfers the system from the normal mode to the normal simulation mode After performing the confirmation test in the main computer and the man-machine computer of the new database using the remote monitoring controller simulation function of the maintenance computer, the main computer, the man-machine computer, and the system monitoring Board system The system updates the database by changing the pointer that points to the database from the online database area to the offline database area while the system is returning from the normal simulation mode to the normal mode. . 4. A remote station controller for monitoring and controlling a controlled station and a remote station controller for performing online operations while accessing a database relating to the controlled station. Single-system power system monitoring control in which a main computer, at least one man-machine computer that receives monitoring information from the main computer, and one system monitoring panel control device that controls the system monitoring panel are connected to a LAN In the system, two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, respectively. Stores each offline database and maintains the database for maintenance. Connected to the LAN, the main computer performs online business while accessing the self-owned online database, and the maintenance computer creates a new database using the self-owned offline database. The database is transferred to the off-line database areas of the external storage devices respectively possessed by the main computer, the man-machine computer, and the system monitoring panel control device, and the main computer transfers the system from the normal mode to the normal simulation mode After performing the confirmation test in the main computer and the man-machine computer of the new database using the remote monitoring control device simulation function of the maintenance computer, transition to the normal test mode, the remote monitoring control device. With a child station In the main computer, the man-machine computer, and the system monitoring board controller, the pointer pointing to the database is returned from the online database area to the offline pointer while the system is returning from the normal test mode to the normal mode. A power system monitoring and control system characterized by updating a database by changing to a database area. 5. A remote station controller for monitoring and controlling a controlled station, and a remote station controller for performing online operations while accessing a database concerning the controlled station. The main computer, at least one man-machine computer that receives monitoring information from the main computer, and one system monitoring panel control device that controls the system monitoring panel are connected to a LAN, and the remote monitoring control device master station And a remote monitoring control device slave station is a single system power system monitoring and control system connected by a transmission line, the main computer, the man-machine computer, and the external storage device of the system monitoring panel control device respectively Two database areas, an online database area and an offline database area, are provided for online database and offline database area. Stores each source,
A maintenance computer for database maintenance is connected to the LAN, the main computer performs online operations while accessing the own online database, and the maintenance computer creates a new database using its own offline database. Transfer the generated new database to the off-line database area of the external storage device of each of the main computer, the man-machine computer, and the system monitoring board control device, and the main computer normally operates the system from the normal mode. After transitioning to the simulation mode, a confirmation test in the main computer of the new database, in the man-machine computer, and in the system monitoring board controller using the remote monitoring controller simulation function of the maintenance computer is performed. After that, one of the remote monitoring control device master stations is dedicated to the remote test, and the remote test is performed with the remote monitoring control device slave station to perform the main test, the man-machine computer, and the system. The monitoring panel control device updates the database by changing the pointer pointing to the database from the online database area to the offline database area while the system is returning from the normal test mode to the normal mode. Supervisory control system. 6. An online operation is performed between at least two remote monitoring control device master stations that monitor and control the controlled station and the remote monitoring control device master station while accessing a database relating to the controlled station. One main computer to perform and at least one to receive monitoring information from the main computer
A single-system power system monitoring and control system in which one man-machine computer and one system monitoring panel control device for controlling the system monitoring panel are connected to a LAN, the main computer, the man-machine computer, and Two database areas, an online database area and an offline database area, are provided in the external storage devices of the system monitoring board control device, and the online database and the offline database are respectively stored, and a maintenance computer for database maintenance is provided. Connected to the LAN, the main computer performs online business while accessing the self-owned online database, the maintenance computer creates a new database using the self-owned offline database, and the created new database The main computer, the man-machine computer, and the system monitoring panel control unit respectively transferred to the offline database area of the external storage device, the main computer, the system transitioned from normal mode to normal simulation mode After that, after performing a confirmation test in the main computer and the man-machine computer of the new database using the remote monitoring control device simulation function of the maintenance computer, transition to the normal test mode, and the remote monitoring control device master station One of them is dedicated for the opposite test, and the opposite test is executed with the remote monitoring and control device slave station, and the main computer, the man-machine computer, and the system monitoring panel control device are operated in the normal test mode. While returning to normal mode, turn on the pointer to the database. Power system monitoring control system, characterized in that updating of the database by changing from the line database region to the offline database area. 7. An online operation is performed between at least two remote monitoring control device master stations that monitor and control a controlled station and the remote monitoring control device master station while accessing a database relating to the controlled station. One main computer to perform and at least one to receive monitoring information from the main computer
One man-machine computer and one system monitoring panel control device for controlling the system monitoring panel were connected to the LAN, and the remote monitoring control device master station and the remote monitoring control device slave station were connected by a transmission line. A power system monitoring and control system of a single system,
Two database areas, an online database area and an offline database area, are provided in the external storage devices of the main computer, the man-machine computer, and the system monitoring board control device, and the online database and the offline database are respectively provided. In addition to storing, a maintenance computer for database maintenance is connected to the LAN, the main computer performs online operations while accessing its own online database, and the maintenance computer uses a self-owned offline database. Create a database, and use the new database created above with the main computer,
The man-machine computer and the system monitoring panel control device respectively transfer to the offline database area of the external storage device, the main computer after transitioning the system from the normal mode to the normal simulation mode, the maintenance The remote monitoring controller simulation function of the computer is used to perform a confirmation test in the main computer, the man-machine computer, and the system monitoring board controller of the new database, and then transition to the normal test mode, and the remote The supervisory control device executes an opposite test with the slave station, and the main computer, the man-machine computer, and the system monitoring panel control device are pointers pointing to the database while the system is returning from the regular test mode to the regular mode. From the online database area to the offline Power system monitoring control system, characterized in that updating of the database by changing the database area.