KR100663956B1 - Remote management system and method for central supervisory/control panal of substation having scada remote terminal unit - Google Patents

Abstract

The present invention relates to a substation remote management system, a remote management computer for operating and maintaining at a remote location by remotely accessing the centralized monitoring control panel of a substation to be managed by driving a remote management program mounted in advance, the remote When the management computer attempts to access the centralized monitoring and control panel of the substation, it is connected to the network network to manage the main management server for connecting the remote management computer to the substation, and analyzes the remote access signal data received from the main management server and analyzes the remote management computer. A remote security device for determining the substation connection maintenance license and a main computer and a remote device installed in the substation are installed and used within and outside the substation through the remote device having a SCADA function. Acquire electrical data value In the remote security device, the remote management computer is connected to the main computer to view and monitor the data, and to configure the centralized control panel to remotely control various facilities of the substation. It can be connected and operated and maintained.

SCADA, remote device, remote management program, remote management computer, centralized monitoring and control panel

Description

REMOTE MANAGEMENT SYSTEM AND METHOD FOR CENTRAL SUPERVISORY / CONTROL PANAL OF SUBSTATION HAVING SCADA REMOTE TERMINAL UNIT}

1 is an overall configuration diagram of a remote management system according to the present invention

2 is a block diagram of a management destination of a remote management system according to the present invention;

Figure 3 is a substation block diagram of a remote management system according to the present invention

4 is a basic flowchart of a remote management system according to the present invention.

5a to 5c is an embodiment of using a remote management program of the present invention

** Explanation of symbols on the main parts of the drawing **

100: remote management computer 110: management destination main server

120: sub-power station general computer 200: network

300: remote security device 310: centralized monitoring and control panel

The present invention relates to a remote management system of a centralized monitoring control panel in a substation having a remote sub-device having a Skada function. When an abnormality occurs in the centralized monitoring control panel of the substation or when modification and modification of the substation equipment that is being accommodated are required, It is possible to perform remote operation / management, remote control and maintenance work by accessing the substation centralized monitoring control panel by operating a remote management program without moving to the site.

Most substations are operated unmanned, and the analog monitoring is made by monitoring and controlling the state of most substation facilities by the centralized monitoring and control panel installed in the substation. The substation facility status is double managed by the power feeding system located at a few tens of kilometer distance through the SCADA multi-functional remote device, and the unmanned operation is possible. The centralized monitoring and control panel operates continuously for 24 hours and operates for 2-3 days. The operation state of the centralized monitoring and control panel system is managed by an inspection panel that traverses the substation once.

If the centralized control panel system operated by the above method fails or the expansion and change of the equipment currently being used and used occurs, the substation circuit board and the workers first contact the competent power station staff to request the system check. (The competent authority or utility worker) has to go directly to the substation to check the system or to work on the expansion and changes, especially in the case of the expansion, such as a large amount of database work (status, analog points, page work, The disconnection diagram modification work and report editing work should be carried out directly on site. In addition, according to the situation of the site, it is often necessary to modify and change the created DB, so there is a problem that the number of dispatched sites is excessive. If the abnormal phenomenon is not solved by the maintenance work of the person in charge, contact the manufacturer's person in charge of the system. It is no surprise that you have to ask for a check and it takes a long time for the system to normalize.

An object of the present invention devised to solve the above problems is that a substation manager remotely connects a remote management computer to a corresponding substation centralized monitoring control panel so that an abnormal phenomenon occurs in the centralized monitoring control panel or needs modification and modification of a substation facility being accommodated. It is to provide a remote management system of the centralized monitoring and control panel in a substation having a remote function device of Skada function that enables the operation, management, control and maintenance work from a remote place without the need to go to the site.

Another object of the present invention is to run a remote management program, log in to the access program, and then select and connect to a specific substation according to the guidance of the main management server, and perform a security procedure for checking the IP addresses of the selected substation and access computer. The present invention provides a method of operating a remote management system of a centralized monitoring control panel in a substation having a remote device having a SCADA function to automatically execute a remote operation and maintenance work when the connection to the centralized monitoring control panel is completed. .

The configuration of the present invention for achieving the above object is a remote management computer for operating and maintaining at a remote location by remotely accessing the centralized monitoring control panel of the substation to be managed by driving a remote management program mounted in advance, the remote When the management computer attempts to access the centralized monitoring and control panel of the substation, it is connected to the network network to manage the main management server for connecting the remote management computer to the substation, and analyzes the remote access signal data received from the main management server and analyzes the remote management computer. The current state of the substation's internal facilities through the remote security device that determines the substation connection maintenance license and the remote security device connected to the remote security device, having a main computer and a remote device installed in the substation, and having a SCADA function. Value and electrical used inside and outside the substation Obtaining a data value, it consists of a centralized monitoring control panel that enables remote control of various kinds of equipment of the substations to inspect and monitor the data from the remote management computer.

It is configured to include a lower power station general computer that is connected to the remote management computer through the management destination main server, the connection usage status is managed and the centralized supervisory control panel access authority is given by the remote management computer. If the lower power station general computer connected to the centralized monitoring and control panel interrupts work for a certain time, the remote management computer disconnects the connection, and the remote management computer is configured to store, retrieve and output the connection usage status data. It is characterized by.

The operating method of the present invention having the above-described configuration comprises: a first step of executing a connection program in a remote management computer, a second step of activating the connection program by logging in to the connection program of the first step, and executing the second step After the third step of selecting a substation to be managed according to the guidance of the management office main server, the fourth step of connecting to the centralized monitoring control panel of the substation selected in the third step and the fourth step of the automatic monitoring after the connection in the fourth step By the fifth step of starting the remote operation and maintenance work of the centralized monitoring and control panel.

The management server main server registers and manages the IP address of the management station and the substation and the ID / password of the management super user and the general user, and is connected to the remote management computer of the super user to concentrate the general user through the management server main server and the remote management computer. Allow access to the monitoring control panel. The general user may attempt to access the centralized monitoring and control panel by transmitting an access signal to the remote management computer after the initial access attempt of the super user is made in the remote management computer.

In the second step, if the ID data inputted during the authentication process and the registered data do not match, it returns to the initialization state. If the input and registration ID data match, the second step is inputted with a password to match the registered password data. And executing the third step and returning to the initialization state if it does not match.

The fourth step includes the step of connecting to the centralized monitoring control panel through a secure access procedure in the remote security device in the substation, wherein the remote security device is the IP address of the substation and the IP address of the management station to be connected to the substation centralized monitoring control panel; And registering and managing passwords. In addition, the secure connection procedure is to check the substation IP address and the IP address and password of the management station to be input to the remote security device compared with the pre-registered data, if the data match each other connected to the centralized monitoring control panel, if not match the initialization state It is characterized by returning to.

The management unit main server stores and manages connection history information at the management station, and the connection history information includes at least one of a name, ID, connection start, connection termination, substation name, and connection time of the management user. The control panel acquires the current state data value and the electric data value indicating whether the high voltage power equipment is switched on or off through a remote device having a supervisory control and data acquisition (SCADA) function, and remotely controls the data value. It is done.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is an overall configuration diagram of a remote management system according to the present invention.

In the remote management system according to the present invention, when the person in charge of the substation management station connects to the substation remote security device 300 through the network 200 using a computer (100: remote management computer or 120: sub power station general computer), the remote Connected to the centralized monitoring and control panel 310 through the security procedures in the security device to allow remote operation and maintenance work, when the facilities of the substation is expanded, various expansion operations are possible without going directly to the site. Facility expansions include database editing to edit status and analog points and pages, graphical editing to edit open circuit diagrams, report modification to edit daily and monthly reports, and substation facility status and analog monitoring. In addition, all functions of the system can be checked remotely so that the system can be rebooted and communication status between each device can be checked and confirmed.

In addition, when the substation centralized monitoring control panel 310 has an abnormality, the circuit group or the worker informs the management person in charge and the management person in contact with the manufacturer person in charge of the production company personnel to execute the remote management program to complete the authentication process After that, remote access to the relevant substation centralized monitoring and control panel was made possible, so that the maintenance of the system could be checked in real time.

Figure 2 is a block diagram showing the configuration of the management destination of the remote management system according to the present invention. Referring to FIG. 2, the remote management computer of the management station in more detail, the remote management computer 100 applied to the present invention is connected to the network 200 through the management server main server 110 substation centralized monitoring control panel Transmit and receive a signal for accessing the remote management computer 100 and the network 200 is connected by a LAN cable (LAN Cable). The remote management computer 100 is a central processing computer of a remote management system installed in the central operation department, has a remote security device access authority installed in the substation, and manages the access usage status from the access management of general computers of lower power stations. Surveillance control panels can be operated and maintained directly from a remote location. In order to access, operate, and maintain the substation, a remote management program should be installed not only in the remote management computer but also in a subordinate power station general computer.

The remote management computer 100 is connected to the management unit main server 110, the main functions are user registration function, access management function, sub-user (power station operator based on the management station) management function, access and use status management function There is this. When the pre-loaded remote management program is connected to the centralized monitoring control panel, when the connection is completed, the same system initial operation screen is displayed as when the centralized monitoring control panel is rebooted at the substation, and the centralized monitoring control panel can be operated. When the remote management program is executed, the functions for registering and managing users and substations are not activated. The registration and management function is possible only for the super user who has the authority to run the remote management program on the remote management computer. Also, by registering the IP address of the remote security device for each substation, it is possible to select and access the substation to be managed by the remote management computer. To help.

The supervisor with the authority of the power management department can block the connection when the user of the power station (general user) stops using it for a certain period of time, and the moment when the power station user's general computer is connected to the centralized monitoring control panel through the substation remote security device. Cumulative connection history is stored in the remote management computer from the time the connection is interrupted and the connection status can be retrieved and output through the system accumulation manager.

3 is a block diagram showing a substation configuration of a remote management system according to the present invention. The main functions of the remote security device 300 shown in FIG. 3 are substation IP address registration, security management, and access status management. The centralized substation monitoring and control panel through the network 200 by executing a remote management program at a management station ( In case of attempting to connect to 310), it is necessary to perform the function of connecting the centralized monitoring and control panel through the LAN connection according to the connection purpose, and to allow the continuous user's continuous access only after the initial connection attempt by the person in charge of supervisor with super user authority. If you are not a pre-registered user (general user), disconnect immediately and wait for a reconnection of a supervisor who has superuser privileges. The remote security device has a function of analyzing and responding to a remote access signal received from a remote control computer of a management station, checking an input IP address according to a remote access purpose, and normalizing communication to perform a desired task.

When the external access signal is transmitted to the remote security device 300, the access status is maintained only when the pre-registered superuser IP address is confirmed. Even if there is a connection and authentication process is completed, if the IP address of the person in charge is inconsistent, the connection is immediately blocked. If a non-registered user attempts to connect while the user is operating through normal authentication, an alarm will sound to inform the user in operation, and if the user stops using it for a certain time even if the user is operating through normal authentication, Stop the connection from the security device. In addition, the remote security device 300 is accumulated by the user from the time when the use started through the normal authentication procedure to the time when the connection is stopped and stored in a file, and the search and output of the connection status for each user through the system accumulation manager It can be saved as a file if necessary and manages the connection status.

In the centralized monitoring control panel, electrical data values such as current state values (eg, whether the switch is open or closed) for the equipment in the substation or electricity flowing into the equipment from the outside of the substation, electricity discharged to the outside from the substation, and electricity used in the internal equipment. (Current, voltage, active power, reactive power, frequency, power factor, temperature, etc.) are acquired through a remote device having a SCADA function to facilitate the operation of the substation facility for the administrator. Remote management and control from remote management computer.)

Looking at the basic operation sequence of the remote management system according to the present invention with reference to Figure 4, after running the remote management program of the remote management computer (S1). Access to the centralized monitoring and control panel may be via a remote management computer in a lower power station general computer or directly from the remote management computer.

In order to activate the access program, the access ID and the password are inputted, compared with the existing registration information to confirm the access authentication, and then the access program is activated (S2). If the entered connection ID does not match the pre-registered ID, the system returns to the initialization state. If the input and registration ID match, the system enters a password and compares it with the data of the registered password. If you activate the program and the input and registration passwords do not match, you are returned to the initialization state.

When the access program is activated, the substation to be managed is selected according to the guidance of the management office main server (S3) and is connected to the remote security device of the selected substation, and inputs the IP of the substation, and the input information is previously registered. Compare and check whether the input IP is registered and whether the registration information is consistent with the registered IP. If the input IP is not registered data or does not match the registered information, it returns to the initialization state.

After performing the above security procedures, if the connection is normally performed (S4), the main computer of the centralized monitoring and control panel is automatically rebooted, and the remote management computer performs remote operation and maintenance operations (S5).

5A to 5C illustrate an embodiment of using a remote management program of the present invention.

The remote management program is an application program installed in the remote management computer of the management station and the sub-power station general computer, and remotely connects to the substation centralized monitoring control panel through the Korea Electric Power Corporation network network. It provides the function to operate and maintain the control panel. In addition, the remote management program is supervised by a management person in charge with super user authority, and can be used only for substations and users registered by the person in charge, and the person in charge of the lower power station is connected only when there is an authentication procedure of the person in charge.

In the remote management program, as shown in FIG. 5A, a user ID may be registered, a user ID may be registered, a history management function may be registered, and the registered user ID and password may be changed and inquired. The registered substation ID and password can be changed and inquired. If the super user ID and password are selected by selecting the administrator access function key, the administrator connection is executed to confirm the IP and password of the remote security device for each substation. It is possible to modify the user's access to the lower power station general computer by notifying the administrator (super user) of the purpose and purpose of access before connecting, and then completing the pre-authentication procedure for the corresponding user of the administrator. If the authentication process is successfully completed, the user of the sub-power station general computer It can be accessed by selecting the burn. The remote management program is run on both the remote management computer and the subordinate power station general computer, but the above registration and management functions are only activated when the remote management program is run on the remote management computer and not when the subordinate power station general computer is run. .

5B is a screen showing the user connection status. If the connection to the substation is successful after the user authentication procedure of the general low-power station general computer is completed, the time is calculated from that time, accumulated until the connection is terminated, and stored as a file. You can search and output the connection status by user by selecting the connection status function key.

FIG. 5C shows the manager connection status. When the administrator executes a remote connection in the remote management computer and is connected to the substation remote security device, the manager calculates a time from that time, accumulates until the connection is terminated, and saves it as a file. You can select and search the administrator connection status.

As described above, specific preferred embodiments of the present invention have been described, but the present invention is not limited to the above-described embodiments, and various modifications by those skilled in the art to which the present invention pertains are described below. It should be said that they fall within the claims of the present invention as claimed.

As described in the above description, the present invention remotely connects to the substation centralized monitoring control panel through the management server main server by operating a remote management program when an abnormal phenomenon occurs in the centralized monitoring control panel or when the modification and change of the substation facility being accommodated are necessary. This allows remote management, management, control, and maintenance to be performed, eliminating the need for administrators to travel to the site, reducing time to work and reducing costs.

Claims (16)

In the system for remotely controlling the centralized monitoring control panel of the substation, A remote management computer for remotely accessing the centralized monitoring and control panel of a substation to be managed by driving a remote management program loaded in advance; A management unit main server connected to a network to connect the remote management computer to the substation when the remote management computer attempts to access the centralized monitoring and control panel of the substation; A remote security device that analyzes remote access signal data received from the management destination main server and determines a substation connection maintenance license of the remote management computer; And Connected to the remote security device and installed with a main computer and a remote device in the substation, and acquires the current state value of the internal equipment of the substation and the electrical data used in and out of the substation through the remote device having a SCADA function. A centralized monitoring control panel for viewing and monitoring the data in a remote management computer to remotely control various facilities of the substation; Remote management system of the centralized monitoring control panel in the substation having a remote device of the SCADA function. The method of claim 1, Remote storage of the SCADA function, comprising a lower power station general computer that is connected to the remote management computer through the management server main server, the connection usage status is managed and the centralized monitoring and control panel access authority is given by the remote management computer. Remote management system of centralized monitoring and control board in substation The method of claim 2, Remote management of the centralized monitoring and control panel in the substation having a remote small device of the SCADA function, characterized in that configured to block the connection from the remote management computer if the work stops for a predetermined time in the lower power station general computer connected to the centralized monitoring and control panel system. The method of claim 2, The remote management computer is a remote management system of the centralized monitoring control panel in the substation having a remote device of the SCADA function, characterized in that configured to store, retrieve and output the connection use status data. In the operation method of the system for remotely controlling the centralized monitoring control panel of the substation, A first step of executing an access program on a remote management computer; A second step of activating the access program by logging in to the access program of the first step; A third step of selecting a substation to be managed according to the guidance of the management destination main server after executing the second step; A fourth step of connecting to the centralized monitoring control panel of the substation selected in the third step; And A fifth step of automatically executing the centralized monitoring control panel after the connection in the fourth step to start remote operation and maintenance of the centralized monitoring control panel; Remote management system operating method of the centralized monitoring control panel in the substation having a remote device of the SCADA function. The method of claim 5, The management server main server registers and manages the IP address of the management station and the substation, and the ID / password of the supervisor and the general user of the management station. . The method of claim 6, The management server main server is connected to the remote management computer of the super-user to allow the general user to access the centralized monitoring control panel through the management server main server and the remote management computer centralized in the substation having a remote device of the Skada function Remote control system operation method of supervisory control panel. The method of claim 7, wherein The general user transmits an access signal to the remote management computer after the first user attempts to connect to the remote management computer, thereby attempting to connect to the centralized monitoring and control panel. Remote management system operation method of centralized monitoring control panel in substation. The method of claim 5, The second step is to remotely manage the centralized monitoring and control panel in the substation having a remote device of the Skada function, including the step of returning to the initialization state if it does not match by checking whether the ID data input and the registered data match during the authentication procedure How to operate the system. The method of claim 9, Intensive monitoring in the substation having a remote device of the SCADA function comprising the step of performing a third step if the input and registration ID data match, and enters a password if it matches the registered password data; Remote control system operation method of control panel. The method of claim 5, The fourth step is a remote management system operating method of a centralized monitoring control panel in a substation having a remote small device of the SCADA function comprising the step of connecting to the centralized monitoring control panel through a secure connection procedure in the remote security device in the substation. The method of claim 11, The remote security device remotely manages the centralized monitoring and control panel in the substation having a remote station device of the SCADA function, characterized in that to register and manage the IP address of the substation and the IP address and password of the management station to access the substation centralized monitoring and control panel How to operate the system. The method according to claim 11 or 12, The secure access procedure compares and confirms the substation IP address and management station IP address and password inputted to the remote security device with the pre-registered data, and if the data match each other, it connects to the centralized monitoring control panel and returns to the initialization state if it does not match. A remote management system operating method of a centralized monitoring control panel in a substation having a remote device of the SCADA function. The method of claim 5, And said management station main server stores and manages access history information at a management station. The method of claim 14, The connection history information is remote control of the centralized monitoring control panel in the substation having a remote device of the SCADA function, characterized in that it comprises at least one of the name, ID, connection start, connection end, substation name, access time of the management station user How to operate the management system. The method of claim 5, The centralized monitoring control panel acquires the current state data value and the electrical data value indicating whether the high voltage power equipment is opened or closed through a remote device having a supervisory control and data acquisition (SCADA) function and remotely controlling the data value. A remote management system operating method of a centralized monitoring control panel in a substation having a remote device of the SCADA function.

Images