Research Of Substation Integrated Automation Monitoring System

The safe operation of the grid substation is an important basis for part of accident any negligence may seriously affect the safe operation of the entire power grid. Normal operation, the substation's main tasks include routine switching operation, accidents and incidents to determine the emergency and these tasks are generally accomplished by running the on duty personnel. In the event of failure, requires operators to determine the faulty components and cause of the accident in order to eliminate the fault and arrange repairs as soon as possible, in time to restore power. As technology advances, the substation will be unmanned substation trends. Paper first outlines the substation automation development at home and abroad as well as future trends, describes the structure and hierarchy, and its monitoring system should have the basic functions. Communication network based on the characteristics described which focuses on key technologies, including field bus technology, Ethernet, RS485, coaxial cable for transmission media, twisted pair, fiber optic and microwave four from the cost, speed, signal attenuation, electromagnetic interference and security and other aspects of comprehensive comparison. In the power network communication systems, scheduling client between clients and the plant stand in order to effectively achieve information transmission, describes the standard communication protocol, summed up the characteristics of communications networks, communications, including two aspects:First, between the parts inside the substation transmission of information, such as the protection action signal to the central signal system alarm:Second substations and power plants, power distribution system is the central room of information transmission, reception and other subsystem switching power plant operation, control commands and control commands queries and other operations, that station outside communication. Finally, data collection, data processing, database configuration, graphics configuration, HMI and SCADA systems in terms of six indicators monitoring system for a simple design.Finally, a full summary of the papers and made the safe operation of the substation monitoring system needs further research.