A brief introduction to the basics of an integrated automation system
The basic concept of integrated automation of power supply and distribution stations.
The integrated automation of power supply and distribution station refers to the use of modern computer technology, electronic technology, network communication technology, etc., to combine and optimize the design of the secondary equipment of the power supply and distribution station through functional combination and optimization design, and to carry out advanced monitoring, coordinated control and management of the power supply and distribution system, so as to realize the intelligence and automation of the distribution network in normal operation, accident handling, power quality monitoring, load management, etc.
Automatics. A robot is a combination of one or more relays or logic elements, such as sensors, controllers, actuators, communication interfaces, and associated power supplies. Equipment that is scheduled to perform a specified automation function. Then there's automation. Among them, the automatic device is an important part of automation, and he uses the automatic device to improve the equipment to reduce human intervention. Improve production efficiency, reduce production costs, improve product quality, reduce the waste of human resources, and also improve the safety and reliability of production.
Integrated automation refers to the use of automation technology to realize the reorganization and optimization of the functions of the secondary equipment of the substation, including measuring instruments, signal systems, relay protection, automatic devices and telecontrol devices. So as to realize the operation of the main equipment of the whole substation to carry out automatic monitoring, measurement, control and coordination and other comprehensive automation functions. At the same time, it can also provide more accurate and timely information for the scheduling and management of the power system.
Integrated automation system for substation and distribution.
The integrated automation system of substation is widely used because of its simplicity, reliability, strong scalability, good compatibility and high degree of intelligence. In terms of structure, the integrated automation system can be divided into three types: centralized, distributed and hierarchically distributed.
Centralized integrated automation system.
He is the use of modular centralized cabinet structure, is all the secondary equipment in the substation, the control and protection functions are concentrated in the special collection, control and protection cabinet, all the control, protection, measurement, alarm and other equipment signals are in the collection, control and protection cabinet, concentrated in a main control room, processed into data signals after transmission to the monitoring computer of the main control room through the optical fiber bus. The automatic management of the substation is realized through the main controller.
An integrated automation system with a hierarchical arrangement.
This structure of the system is currently widely adopted by mainstream manufacturers at home and abroad. He is the microcomputer protection, monitoring, measurement, control and other equipment in the substation, which are installed on each switch cabinet or control panel, and can be vertically divided into substation layer, communication layer and interval layer according to the distribution status of the secondary equipment of the substation automation system, and assembled into multiple screens according to their functions, which are centrally installed in the main control room.
Sum up. Centralized structure, which has a simple structure and is easy to maintain and manage, but has poor reliability and security. The distributed structure has high reliability and security, but the structure is complex and difficult to maintain and manage. The hierarchical distributed structure combines the advantages of centralized and distributed, with simple structure, high reliability and security, but it is more complex to implement.