Application Analysis of Substation Security Management System Technology
2024-02-23 04:07:20
Substation, where the voltage is changed. In order to transport the power from the power plant to a remote place, the voltage must be raised to a high voltage, and then the voltage should be reduced as needed near the user. This kind of voltage rise and fall is done by substations. The main equipment of the substation is the switch and transformer. According to the size and size, it is called a substation or a power distribution room.
I. Overview
The traditional substation monitoring system is affected by the traditional concept and can only perform on-site monitoring, simple alarm information transmission, and can not achieve long-distance intelligent control. It is very difficult for the front-end to understand the specific situation, on-site control and event confirmation, invisible The system reduces the utility, stability, and security of the system. With the rapid development of computer technology and network communication technology, the development of power system automation has been increasingly perfected, especially in the remote monitoring of power system substations, the latest computer technology, communication technology and image processing technologies are widely used. For industries such as substations, remote, real-time intelligent monitoring and control are prerequisites for the safe operation of industrial systems.
For conventional unattended substations, how to combine remote monitoring, remote control, environment, security, fire fighting, oil, electricity, gas on-line monitoring and alarm networking systems to achieve both remote monitoring, remote control and images The transmission also has the overall monitoring of the remote access control and the environment, and it also has the function of normally networked alarms. Moreover, due to reasonable investment costs, it can prevent and fight crimes more effectively and protect property safety. To ensure the stable operation of the system and raise the safety precautions to a new level, this has become the main direction for the development of modern substation monitoring applications. Substation intelligent integrated management system can solve the difficult problem of dispersed substation management, and greatly improve the automation of substations.
Second, design ideas and technical principles
The project takes the central station of the XX area as the core, builds an integrated intelligent integrated system of substations' substation management, sets up a control center at the central station of the XX area, and realizes the control functions of all substations under its jurisdiction;
1, the basic design ideas
(1) A three-level project system is constructed with a control center (set in the regional center station), a workstation (installed in each substation), and functions. Based on the power information private network to realize the connection between the control center and the workstation, the workstation and the function realization terminal are connected to the dedicated network in the station. Workstations and functional terminal integrated intelligent control modules are all set to be able to operate independently offline to protect the basic functions of network faults;
(2) The hierarchical control of function control, that is, the automatic function of setting in the station is controlled by the workstation, and the manual instruction of the control center is executed; the control center realizes centralized management of information and remote control;
(3) The system must have good openness and scalability so as to add new functions and build higher-level systems.
2, system design principles
The design principles of the system include: reliability principle, real-time and accurate principle, principle of combining advanced and practicality, principle of flexible scalability, principle of easy maintenance, principle of security, principle of openness of standardization, principle of easy operation, Targeted principle.
The working environment used for substations is rather special, especially the characteristics of large external electromagnetic interference. Apart from satisfying the work characteristics, the system design must also meet the following requirements: 1. All the hardware devices of the system must effectively shield the outside world from high frequencies and low frequencies. Electromagnetic field interference to the equipment; 2, in the outdoor equipment must have the reliability of lightning, anti-static, power short circuit protection and other aspects; all substation workstations are capable of independent operation, under the exception of the network can be offline and automatically run and save Event records, after normal data automatically upload to the central station control center.
I. Overview
The traditional substation monitoring system is affected by the traditional concept and can only perform on-site monitoring, simple alarm information transmission, and can not achieve long-distance intelligent control. It is very difficult for the front-end to understand the specific situation, on-site control and event confirmation, invisible The system reduces the utility, stability, and security of the system. With the rapid development of computer technology and network communication technology, the development of power system automation has been increasingly perfected, especially in the remote monitoring of power system substations, the latest computer technology, communication technology and image processing technologies are widely used. For industries such as substations, remote, real-time intelligent monitoring and control are prerequisites for the safe operation of industrial systems.
For conventional unattended substations, how to combine remote monitoring, remote control, environment, security, fire fighting, oil, electricity, gas on-line monitoring and alarm networking systems to achieve both remote monitoring, remote control and images The transmission also has the overall monitoring of the remote access control and the environment, and it also has the function of normally networked alarms. Moreover, due to reasonable investment costs, it can prevent and fight crimes more effectively and protect property safety. To ensure the stable operation of the system and raise the safety precautions to a new level, this has become the main direction for the development of modern substation monitoring applications. Substation intelligent integrated management system can solve the difficult problem of dispersed substation management, and greatly improve the automation of substations.
Second, design ideas and technical principles
The project takes the central station of the XX area as the core, builds an integrated intelligent integrated system of substations' substation management, sets up a control center at the central station of the XX area, and realizes the control functions of all substations under its jurisdiction;
1, the basic design ideas
(1) A three-level project system is constructed with a control center (set in the regional center station), a workstation (installed in each substation), and functions. Based on the power information private network to realize the connection between the control center and the workstation, the workstation and the function realization terminal are connected to the dedicated network in the station. Workstations and functional terminal integrated intelligent control modules are all set to be able to operate independently offline to protect the basic functions of network faults;
(2) The hierarchical control of function control, that is, the automatic function of setting in the station is controlled by the workstation, and the manual instruction of the control center is executed; the control center realizes centralized management of information and remote control;
(3) The system must have good openness and scalability so as to add new functions and build higher-level systems.
2, system design principles
The design principles of the system include: reliability principle, real-time and accurate principle, principle of combining advanced and practicality, principle of flexible scalability, principle of easy maintenance, principle of security, principle of openness of standardization, principle of easy operation, Targeted principle.
The working environment used for substations is rather special, especially the characteristics of large external electromagnetic interference. Apart from satisfying the work characteristics, the system design must also meet the following requirements: 1. All the hardware devices of the system must effectively shield the outside world from high frequencies and low frequencies. Electromagnetic field interference to the equipment; 2, in the outdoor equipment must have the reliability of lightning, anti-static, power short circuit protection and other aspects; all substation workstations are capable of independent operation, under the exception of the network can be offline and automatically run and save Event records, after normal data automatically upload to the central station control center.
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